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Browne & Co Appointed as Representatives of Regal Cutting Tools:  Focus on Tapping and Threading Products

4/1/2022

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Browne & Co has been appointed as Regaional Managers for Regal Cutting Tools.  They will be responsibilve for distributor and technical support for the Kentucky, Ohio, and Western Pennsylvania market areas.
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Regal Cutting Tools has been manufacturing world-class cutting tools since 1955  Regal offers a high performance SuperTuf series of taps for the demanding difficult to machine materials.

Regal also manufactures special taps from blanks with as little as 24 hour notice.
Regal Cutting Tools
They manufacture tapping and thread milling tools in a wide variety of materials, coatings, and treatments to accomplish your individual needs and demanding job requirement.

Regal and their highly respected distributors share a common goal:  To achieve cost effective tooling solutions through improved tool life, technical support, coatings, and effective inventory management systems that accomplish uptime goals.
According to Dave Browne, President of Browne & Co, "Regal Cutting Tools. is a well established and trusted brand within the metalcutting industry. Their full line of taps as well as their tap specials capabilities really compliment our product mix and fills an area we have pretty deep experience in but didn't have a product to recommend.  We're really looking forward to working with our customers and running these tools!"
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The Different Types of Carbide Taps and When to Use Them

8/18/2021

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This is Part 2 of our series on Carbide taps.  Be sure to check out Part 1 if you missed it:
 Carbide Taps: A Practical User’s Guide to When, What, How and Why
​

Carbide taps have a lot of advantages, especially when you’re cutting very abrasive materials. The absolute best choice for tapping glass-filled polycarbonates, space age alloys, nonferrous materials, cast iron, and a range of other exotic materials, their anti-friction qualities lead to a longer tool life.

Because of this, you’ll require fewer replacements, less downtime, and increased productivity.

The durability, flexibility, and longevity of carbide taps is unparalleled, allowing you – and your employees – to focus on what’s important: getting the job done.

GWS Tool Group offers an unparalleled selection of taps for many applications, allowing you to source all of your essential taps from one supplier.

​In today’s post, we’re going to take a closer look at a few of the options that they offer.
Carbide Taps Allen Benjamin North American GW Schultz GWS TOol Tapping

Standard Screw Thread Insert Taps

Standard Screw Thread Insert Taps

S.T.I. (Screw Thread Insert) Taps are special taps for helical coil wire screw thread inserts, which provide positive means for protecting and strengthening tapped threads in any material.
​
Typically used on softer abrasive materials, these taps create more accurate thread forms than other standard taps. When you need to be precise, these carbide taps are the best choice.

North American Tool's  STI taps are correctly sized to produce an internal thread that accommodates a helical coil wire screw thread insert. The insert, in turn, will accept a screw thread of the nominal size and pitch at final assembly. Screw thread inserts provide stronger tapped threads (stronger assemblies) due to a more balanced distribution of loads throughout the length of thread engagement.


Thread Forming Tap

Thread forming taps Tru-Flo taps
​
Thread forming taps (Tru-Flo taps) offer improved thread quality and strength due to the fluteless design, and therefore allows for greater fastener strength in the threaded product. This tap does not cut, so it is “chipless,” and therefore will not cause a chip problem.  This is why thread forming, over thread cutting, eliminates costly and time-consuming chip clean-up and disposal.

Thread forming taps are fluteless and include lubrication grooves. Not intended for general applications, they work by displacing the metal without removing it. Because of this, they are ideal for chip removal in blind holes.

​
​Tru-Flo Thread Forming Taps Features 
  • Improved thread quality and strength due to fluteless design of tap; allows greater fastener strength in threaded product.
  • Tapping speeds can be increased as much as double that of conventional cutting taps…more tapped holes per hour.
  • Thread forming (over thread cutting) eliminates costly and time-consuming chip clean-up and disposal.
  • Improved tap life, even in abrasive materials…no cutting edges to get dull.
  • Lubrication grooves allow forced passage of air and lubricant when tapping.
  • Simplifies tapping of problematic blind bottoming holes where adequate chip clearance is impossible with chip-producing cutting taps.



Carbide Insert Taps

Carbide Insert Taps

A cost-efficient solution, only the cutting portion of insert taps is made from carbide. Their HSS body is able to absorb vibration and account for their lack of rigidity.

If you’re considering testing the waters with carbide taps, insert taps are a great option. It's a very economical way to utilize the benefits of carbide with solid carbide cutting face inserts meticulously brazed to a H.S.S. tap body.
​
Carbide Insert Tap Features
  • High speed steel body absorbs excessive shock and offers the rigidity necessary to minimize carbide breakage or chipping.
  • Ideal for high production runs, offering the capability to achieve higher speeds and feeds, with fewer tool changes.
  • High performance tapping allows greater efficiencies in part throughput.
  • Can also be used in conjunction with surface treatments for enhanced performance.
  • Carb-I-Sert® Taps are available in a wide range of sizes (inch and metric) in both straight and taper pipe threads.

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Carbide Taps: A Practical User’s Guide to When, What, How and Why

6/17/2021

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Highly abrasive materials like cast iron, polymers, glass filled polycarbonates, and some cast aluminum are called “hard” materials for a reason. They’re hard to machine, hard on tool life and hard on production cycle times.

​How do you overcome the difficulties of making parts out of challenging raw stock? By using a tool that’s even tougher. Consider a change from steel taps to carbide taps.

When to Use Carbide Taps

While high speed steel (HSS) taps have a practical top limit of around 35-­40 HRC before tool life becomes severely limited, carbide is often used in materials with hardness up to 65 HRC (the ones that chew up HSS in no time).

​With the appropriate style for the application, tool life of carbide can be 5­20 times that of HSS, with the added bonus of superior accuracy.

What Carbide Taps to Use

That’s easy. GWS Tool Group carbide taps are American made from high-quality C2 micro-grain carbide by highly skilled machinists on state-­of-­the-art equipment, and are backed by decades of experience from our support staff.
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​We offer carbide taps in UN and Metric sizes as well as straight and NPT/F Pipe and STI Standards. A wide range of styles and features are available, including straight flute, spiral flute, spiral point, and forming taps. For increased performance and life, we can customize tools with a full line of surface coatings such as TiN, TiCN, and TiALN.

How to Use Carbide Taps

Machining with carbide does come with some “do’s and don’t”. Hand­ tapping is generally not recommended. Rigid tapping and spot­-on alignment are critical to avoid breakage. Not to worry, however. Modern CNC equipment is ideally suited for carbide applications.

Here’s some additional tips. Coolant holes through the taps are an option for flushing chips out of the holes on the most difficult materials like some of the tougher stainless steels and space-­age alloys. Carbide STI (Screw Thread Insert) tapping of these materials has become commonplace in the aeronautical and aerospace industries.

The Why of Carbide Taps

CARB-I-SERT® CARBIDE INSERT TAPS
CARB-I-SERT® CARBIDE INSERT TAPS
Although initially more expensive than HSS taps, significant savings can be realized, especially in long-­run jobs. Higher cutting speeds, greater tool life, and reduced down­time from fewer tooling changes translate into reduced machining costs.

An alternative to costly larger sizes is our line of Carb­I­Sert® Taps. Solid carbide cutting surfaces are bonded onto a high-speed steel body to provide the best of both worlds; durability of carbide with the “forgiveness” of a steel body and shank.

So, don’t let difficult materials give you a “hard” time. Contact us anytime and put our carbide taps to work for you.

Watch for Part 2 of this series on carbide taps!
​Coming in August 2021: The Different Types of Carbide Taps and When to Use Them
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Need Carbide Fractional and Metric Taps? Allen Benjamin Has You Covered

1/13/2021

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Almost a year ago, Allen Benjamin, which has been a part of North American Tool,  was purchased by GWS Tool Group. GWS Tool Group is a US-based, vertically integrated manufacturer of highly engineered custom, standard, and modified standard cutting tools, primarily servicing the aerospace and defense, power generation, automotive and medical sectors. GWS Tool Group has acquired multiple businesses in the course of its growth which now serves as the respective manufacturing divisions for the Company.  

Just because there is a new owner, doesn't mean that the quality of an Allen Benjamin Tap has changed! 

If you’re in the market for high tensile strength carbide taps and metric taps, we can assure you that you’re in the right place. Not only is Allen Benjamin a leading supplier of the industry’s most durable, longest lasting carbide taps, we offer our customers the convenience of ordering online. In this day and age, we believe that quick access and top-notch customer services are critical.

In today’s post, we’re going to look at why it is beneficial to order your carbide taps from Allen Benjamin.

Quality
Allen Benjamin carbide taps are highly efficient when tapping abrasive metals such as aluminum, non-ferrous metals, and exotic materials. With a much higher tensile strength than standard taps, their high-quality carbide taps can withstand the rigorous demands of your application.

Selection
Allen Benjamin offers a staggering range      of carbide taps, metric taps, HSSE taps, tapping fluid, extensions, and more. If it’s taps that you are looking for, you can be confident that they’ve got them and have them ready for delivery.

Service
Allen Benjamin guarantees that all of their products will be the absolute best quality, within standard tolerances and dimensions, and consistent with application specifications. If their goods don’t meet your needs, you can contact us for a return authorization.

At Allen Benjamin, they take pride in offering the industry’s best taps. But, more importantly, they aim to provide our customers with access to a simpler, faster way to order their operation’s critical parts, supplies, and components.

If you’ve been searching for a supplier that will meet your needs and rise to meet your challenges contact us today!

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Tapping Tuesday: How can you Optimize a Tap's Chamfer Based on Your Application?

11/17/2020

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Tap-Chamfer-Lenght-Point-Angle
How can you optimize a tap's chamfer based on your application?

Although North American Tool/ GWS  stocks many common special taps with standard chamfer lengths, they can design and manufacture a special tap for your application.

​Optimizing the chamfer results in, longer tap life, reduced tapping torque, better finish, and make the difference between success and failure.

As most of you know, the chamfer is the tapered section on the front of the tap. It includes the length, angle, radial relief, and point diameter.

​As the tap rotates and advances forward, each succeeding chamfered tooth enters the drilled hole and takes deeper and deeper cuts until the first full thread on the tap completes producing a full thread in the part. The balance of the tap’s threads within the length beyond the chamfer, do not do any cutting and just goes for the ride.
​
The amount of material removed by each chamfer tooth is called the chip load per tooth. The lower the chip load per tooth, the less torque is required, thus the less heat is generated, resulting in the benefits stated above.

​Another way to look at this is by the number of cutting teeth.

​The greater the number of cutting teeth, the lower the chip load per tooth. The number of cutting teeth is determined by multiplying the number of chamfered teeth times the number of flutes.

For example, a standard, 4 flute, ¼-20 UNC, plug (3 to 5 threads) tap has 12 to 20 cutting teeth (4 flutes X 3 threads =12 and 4 flutes X 5 threads 20).
​
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Increasing the total number of chamfered teeth cutting, can increase tap life exponentially.

​The example above shows that a standard plug chamfer (3 to 5 threads) length, so on a 4 fluted tap, it will range between 12 to 20 cutting teeth. Because North American Tool/ GWS understands more is better, they make it a point to manufacture our taps with a chamfer length closer to maximum length, in this case, 5 threads. This is also true for the other standard chamfer lengths Bottom, Semi Bottom, and Taper. 

Although more is better, you may be limited to the length of chamfer due to the job requirements. We should also note that the incomplete threads created and left in the part by the chamfer are not too full thread height and will cause assembly interference, therefore they are not considered part of the required thread length.

As for manufactured specials, knowing your application requirements is necessary for us to design a tap that optimizes performance. For chamfer design, North American Tool/ GWS would need to know, tap drill size, tap drill depth, and full thread length requirement.

Knowing the tap drill size allows us to grind a chamfer with a point diameter that permits the tap to start cutting within the first half thread of entry. Because there are many factors that go into determining a tap drill size, there can be a relatively wide range of diameters. If the chamfer point diameter is smaller than the tap drill diameter, then the tap may not start cutting until the second chamfer tooth or beyond.

Using the same 4 flute, plug tap from the example above, in an application with a tap drill size larger than the chamfer point diameter, such that the tap does not start cutting till the 2nd chamfer tooth, will have a reduction in cutting teeth by 6 (1.5 threads X 4 flutes), or 30%. If the application is such that only a bottom chamfer (1 to 2 threads) can be used, and it is ground to the maximum length of 2 threads it will result in a reduction of cutting teeth from 8 (2 threads X 4 flutes) to 6 (1.5 threads X 4 flutes) or 75%.

Knowing the tap drill depth and full thread length requirement also allows us to design the maximum length chamfer for your application. This may take into consideration the overspin of the machine spindle, or room at the bottom of a blind hole so the tap does not run into any chips that may have made their way to the bottom.
Tap-Chamfer-Good-Not-Good
Although the information presented may be confusing, hopefully we have explained the importance of the chamfer, and the many considerations that go into its proper design.

So, if you are ready to increase tap life, reduced tapping torque, improve the finish, and make the difference between success and failure, give us a call with your application requirements.
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Using Carbide Taps Can Increase Rates of Production and Performance

9/16/2020

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Allen Benjamin carbide taps
If you’re cutting extremely abrasive material, we’re confident that you’ve already investigated the benefits of carbide taps. Whether you’re tapping cast aluminum, nonferrous materials, polymers, cast iron, or any number of other materials, carbide taps offer better edge wear resistance and, more importantly, help to reduce downtime and increase profitability.

As an ISO 9001:2008 registered manufacturer, Allen Benjamin is absolutely committed to offering the best taps on the market. In today’s post, we’re going to look at a few of the benefits of using our carbide and high-performance taps.

Stronger
Ideal for very abrasive metals, carbide taps have a much higher tensile strength than standard taps. Because of this, they offer a longer tool life and work to reduce production costs.

Better performance
Due to their ability to increase tool life, carbide taps have a positive effect on your operation’s performance. Helping you to reduce maintenance and – by extension – downtime, they allow your staff to focus on more productive, more profitable tasks.

Cost-effective
While the initial cost may be higher than standard taps, carbide taps are far more cost-efficient in the long run. Their extended tool life results in fewer replacements which, of course, leads to less reorders and money saved over time.

At Allen Benjamin, we are steadfastly dedicated to our customers’ productivity. Always aiming to offer products that are capable of reducing maintenance, increasing uptime, and improving profitability, we strive to act as a convenient, responsive supplier of high-quality carbide taps. Whether you’re a small, local manufacturer in need of a handful of taps or a large, multi-national operation looking to place a large order, you can be confident that we can help. If you have any questions about our products, we encourage you to reach out to us today to discuss your needs!

Carbide Taps From Allen Benjamin

Allen Benjamin’s carbide taps provide a substantial increase in performance and tool life over HSS – or high speed steel – taps. As a result, our customers experience longer tool life and, due to this, reduced production costs that help to contribute to higher profits and a more efficient line.

Styles of Carbide Taps Available

  • Carbide Straight Flute taps
  • Carbide Spiral Point taps
  • Carbide S.T.I. (Screw Thread Insert) taps
  • Carbide Metric taps
  • "PRX" and "PRC" Carbide Taps for tough, challenging applications
  • Carbide Multi-Flute taps for tapping plastic, resins, fiberglass and like materials
  • Carbide Pipe Taps
  • Carbide Thread Forming Taps
  • Carbide Insert taps with HSS tap bodies
  • Special, Made-to-Order Carbide taps
Styles of Carbide Taps Allen Benjamin
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The Ring is the Thing—and Allen Benjamin Has an Extra One for High Performance Taps

8/5/2020

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World class athletes will be gathered in Tokyo a year from now to compete in the Olympics. Nations don’t just send anyone to represent them, they choose their best.

The same is true in your shop when you are reaching for world class performance. 

Standard taps are designed with many materials in mind, but when you tackle the tough to machine materials, the performance of just any tap won’t cut it.


That’s why Allen Benjamin offers High Performance HSSE Color-Ring Taps. 
Allen Benjamin Color Ring tap
Choose from six rings to maximize tool life and improve thread quality. 

Here’s the key to selection:

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These tools are stocked standards. 

Fractional sizes are available from #0-80 up though 1”-8 and Metric sizes from M2.5 x 0.45 through M20 x 2.5. 

To compete for the gold with your customers, choose High Performance with Allen Benjamin Color-Ring Taps.


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Tapping into Tapping Terms

7/1/2020

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Getting a good understanding of the definitions of the parts of a tap will help you to better understand the functions of  tap designs.  Special thanks to North American Tool for letting us share their short and simple explanations!
North American Tool Tap Nomenclature definitions
ALLOWANCE
Minimum clearance between two mating parts; the prescribed variations from the basic size.

ANGLE OF THREAD
The angle included between the sides of the thread measured in an axial plane.

AXIS

The imaginary straight line that forms the longitudinal
centerline of the tool or threaded part.

BACK TAPER
A gradual decrease in the diameter of the thread form on a tap from the chamfered end of the land towards the back which creates a slight radial relief in the threads.

BASE OF THREAD
The bottom section of the thread; the greatest section between the two adjacent roots.

BASIC SIZE
The theoretical or nominal standard size from which all variations are derived by application of allowances and tolerances.

CHAMFER
The tapering of the threads at the front end of each land of a tap by cutting away and relieving the crest of the first few teeth to distribute the cutting action over several teeth; Taper taps are chamfered 7-10 threads; plug tapsare chamfered 3-5 threads; semi-bottoming (or modified bottoming) taps are chamfered 2-2.5 threads; bottom-ing taps are chamfered 1-2 threads; taper pipe taps are chamfered 2-3.5 threads.
North American Tool Concentric Eccentric Con-Eccentric relief.
CHAMFER RELIEF
The gradual decrease in land height from cutting edge to heel on the chamfered portion, to provide clearance for the cutting action as the tap advances.

CREST
The top surface joining the two sides or flanks of the thread; the crest of an external thread is at its major diameter, while the crest of an internal thread is at its minor diameter.

CUTTING FACE
The leading side of the land in the direction of cutting rotation on which the chip forms.

FLUTE
The longitudinal channels formed in a tap to create cutting edges on the thread profile, and to provide chip spaces and cutting fluid passages.

HEEL
The edge of the land opposite the cutting edge.

HEIGHT OF THREAD
The distance, measured radially, between the crest and the base of a thread.

HELIX ANGLE
The angle made by the advance of the thread as it wraps around an imaginary cylinder.

HOOK
The undercut on the face of the teeth.
North American Tool Tap Hook
HOOK ANGLE
The inclination of a concave cutting face, usually specified either as Chordal Hook or Tangential Hook.
  • Chordal Hook Angle: The angle between the chordpassing through the root and crest of a thread form at the cutting face, and a radial line through the crest at the cutting edge.
  • Tangential Hook Angle: The angle between a line tangent to a hook cutting face at the cutting edge and a radial line to the same point.

INTERRUPTED THREAD TAP
A tap having an odd number of lands with alternate teeth along the thread helix removed. In some cases alternate teeth are removed only for a portion of the thread length.

LAND
The part of the tap body which remains after the flutes are cut, and on which the threads are finally ground. The threaded section between the flutes of a tap.

LEAD
The axial distance a tap will advance along its axis in one revolution. On a single start, the lead and the pitch are identical; on a double start, the lead is twice the pitch.

MAJOR DIAMETER
Commonly known as the “outside diameter.” It is the largest diameter of the thread.

MINOR DIAMETER
Commonly known as the “root diameter.” It is the small-est diameter of the thread.

PERCENT OF THREAD
One-half the difference between the basic major diameter and the actual minor diameter of an internal thread, divided by the basic thread height, expressed as a percentage.
North American Tool Basic Pitch Diameter angle of thread flank
PITCH
The distance from any point on a screw thread to a cor-responding point on the next thread, measured parallel to the axis and on the same side of the axis. The pitch equals one divided by the number of threads per inch.

PITCH DIAMETER

On a straight thread, the pitch diameter is the diameter of the imaginary co-axial cylinder...the surface of which would pass through the thread profiles at such points as to make the width of the groove equal to one-half of the basic pitch. On a perfect thread this occurs at the point where the widths of the thread and groove are equal. On a taper thread, the pitch diameter at a given position on the thread axis is the diameter of the pitch cone at that position.
North American Tool Allen Benjamin Positive Negative Neutral Rake Tap
RAKE
The angular relationship of the straight cutting face of a tooth with respect to a radial line through the crest of the tooth at the cutting edge.
  • Negative rake means that the crest of the cutting face is angularly behind the balance of the cutting face of the tooth.
  • Neutral or Zero rake means that the cutting face is directly on a radial line.
  • Positive rake means that the crest of the cutting face is angularly ahead of the balance of the cutting face of the tooth.

RELIEF (or Thread Relief)
The removal of metal from behind the cutting edge to provide clearance and reduce friction between the part being threaded and the threaded land.

ROOT
The bottom surface joining the sides of two adjacent threads, and is identical with or immediately adjacent to the cylinder or cone from which the thread projects.

SPIRAL FLUTE
A flute with uniform axial lead in a spiral path around the axis of a tap.

SPIRAL POINT
The angular fluting in the cutting face of the land at the chamfered end; formed at an angle with respect to the tap axis of opposite hand to that of rotation. Its length is usually greater than the chamfer length and its angle with respect to the tap axis is usually made great enough to direct the chips ahead of the taps cutting action.

STRAIGHT FLUTE
A flute that forms a cutting edge lying in an axial plane.

TOLERANCE
In producing a tap to given specifications, tolerance is:
(a.) the total permissible variation of a size;
(b.) the differ
ence between the limits of size.
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Understanding Tap "Relief"

1/19/2020

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Have you ever had a tapping job that was so troublesome that it caused heartburn or acid indigestion due to broken taps, bad finish, short tap life, over or undersized threads, etc.?

One way of avoiding or alleviating such a condition is accomplished with the use of a tap feature called “relief”. The definition of “relief” according to Marian Webster, is removal or lightening of something oppressive, painful, or distressing. For a tap, “relief” is the reducing of surface contact between the tap/tap feature and the part being tapped. Surface contact generates unwanted heat causing the issues mentioned above. Depending on the tap feature, relief is applied in a direction that is, radially, around the tap, or axially, along the axis of the tap.

All taps require a minimum number of features to have relief for it to cut, other reliefs are applied when the tapping application requires it. There are always tradeoffs when designing a tap, if a relief is applied or it’s amount is greater than necessary, it can cause the tap to run free or loose to a point it will cause heartburn or acid indigestion by producing issues mentioned above.
Relieved features that are always necessary on a tap are:
               
Chamfer, the tapered threads at the front of the tap. The crests or major diameter of the chamfered threads are radially relieved from the cutting edge to the heel of the land. Without this relief it would be like cutting a tomato with the non-sharp side of a knife, you can imagine the results of that. When looking at a taps chamfer, relief results in the crest width being wider at the cutting edge and narrowing towards the heel;
Tap Chamfer
Cut Tap Cutting-Edge Heel
Back Taper, a slight gradual reduction of the taps thread form including it’s major, pitch and minor diameters. It starts at the chamfered end of the tap and continues axially for the length of thread towards the shank end.

A typical diameter reduction amount for a standard tap is 0.005/0.0010 per inch. This amount may be increased for specially designed taps used for tapping materials that close in excessively on the tap.

The chamfer threads, as well as the first full thread of the tap, do the cutting and the balance of the non-chamfered, non-relieved threads, go for the ride helping guide the tap. Back taper prevents surface contact of the non-chamfered threads with the part material.
Major-Pitch Minor Diameter Tap
Additional features that can be relieved

Thread Relief, a radial reduction of the taps major and pitch diameters from the cutting edge to the heel. Relieving of the pitch diameter results in the minor diameter being relieved as well due to the manufacturing process whereas the major diameter is relieved separately. The application of the major or pitch diameter relief is normally applied separately but both can be done in combination. Relief of pitch diameter is the most common followed by the major diameter. Thread relief is applied when Back Taper alone is not enough to prevent surface contact when tapping materials that close in and squeezes the tap like stainless steel. The rate of reduction from the cutting edge to the heel is based on the material being tapped and, in some cases, the tapping application.

There are two common types of Thread Reliefs:
  • Eccentric, a radial relief in the thread form starting at the cutting edge and continuing to the heel.
  • Con-Eccentric, Radial relief in the thread form starting back of a concentric margin.
Thread-Relief-Eccentric diagram
Tap Thread Con-eccentric-Relief
The reliefs we have discussed so far are applied during the tap manufacturing and other than the chamfer relief cannot be added or changed. If you are in a bind and must ship parts but can’t wait for us to design, manufacture and ship the appropriate tap, there are additional types of relief that can be applied that may work in a pinch. Sometimes referred to as a poor man’s relief, something you may be capable of doing in your shop without too much trouble to get you through a quick job, or until properly designed tools arrive.
Tap Diagram Flatted-Grooved-Heel land
The application of relief types and amounts are dependent on many factors such as material properties being tapped, style and size of tap, how the tap is being used (hand, machine, etc.) and application requirements, etc. By providing us with as much information about your tapping application, it will enable our engineers to design a tap with the proper relief. This will help alleviate troublesome heartburn or acid indigestion.
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What Is A Controlled Root Tap?

12/9/2019

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First things first, what is the root of a tap?

The root of a tap is the surface at the bottom of the thread-form that connects adjacent thread flanks and is expressed as a width or as a diameter. The term root diameter is also called minor diameter, it’s one of those things, you say rain and I say precipitation, meaning the same thing...


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Browne & Co., Inc.
9605 Tanager Drive
Chardon, Ohio 44024
Phone 440.285.8655
Fax 440.285.8653
dmb@brownesales.com
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