 This single tool allows manufacturers to drill, chamfer, and then back chamfer; resulting in less time setting up tooling, less tooling needed, and an overall reduction in their total cost per piece. Check out some starts below on how this custom tool helped one of our customers reduce cycle time and save money. Drill, Chamfer, Back Chamfer Stats:
Watch Drill, Chamfer, Back Chamfer In Action in the below video. Download the Drill, Chamfer, Back Chamfer Case Study below
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written and edited by Bernard Martin  A hoist is a machine that can be used for lifting and lowering heavy loads In most applications a hoist is usually suspended overhead by means of a hook or connected to a trolley. Hoists can be powered by hand, electricity, or air and can be supplied in various shapes and configurations. A hand chain operated hoist, being a force multiplier, gives a person the ability to lift large / heavy loads with a small amount of force by using mechanical advantage. The lifting or lowering operation takes place by pulling on one side or the other of the hand chain which is endless. Hand chain hoists are less expensive than powered hoists but they require the physical effort of pulling the hand chain to lift the load. Chain hoists are great options to replace the manual lifting process in assembly lines and other material handling areas. Manual chain hoists typically operate with two chain loops, the hand chain and lifting chain. The hand chain wraps around a wheel that supports the lifting mechanism by pulling. The lifting chain is used to lift and lower the load by maneuvering the hand chain. This type of hoist system can be used in manufacturing facilities, construction sites, auto shops and warehouses. In industrial applications, hand chain hoists are most often used as an in-plant tool for periodic maintenance applications. A typical use might be for lifting pumps, generators, valves, pipe or other heavy equipment.
Chain Hoist Terms & How to Select the Best Chain Hoist for Your Needs There are several things you should consider when selecting a manual chain hoist. Manual hoists have the advantage of being compact and light when compared to electric hoists. Here's some things to think about when selecting the best chain hoist for your applications.
FALL OF CHAIN This is the number of chains that attach to the lifting chain hook. Additional Falls of chain is It's what enables Tuffy to use a 10mm chain for up 50 tons of lift. By standardizing on a chain size of 10mm it's easier to stock replacement parts and also to keep the overall costs down SUSPENSION The way you hang the manual chain hoist referred to as its suspension. The two most common types of suspension are the hook suspension and lug suspension. Most hoists allow for a lug suspension. It is particularly useful in situations where headroom for hoist operation is limited or insufficient. HEADROOM This describes one of the dimensions of a hoist. This dimension is the distance between the bearing surfaces of the upper and lower hook when the lower hook is raised to its highest point. (or the minimum distance between the hooks) Headroom is depicted in the chart below by dimension "A" OTHER FACTORS TO CONSIDER Other factors include the height of the hook point: where the chain hoist will be mounted, and type of operator interfaces, such as hand chains. Do you have low headroom? Will you be using this on an A-frame gantry? Then dimension A in the below chart is going to be important to you. If you are mounting from the ceiling you will need to know if it is an I-Beam or H-beam and is it the beam flat or tapered? Explosion proof environments or clean room environments each have some specialized requirements that we can help you with but, for now, keep in mind that each beam has different applications and is a topic unto itself. TUFFY CHAIN HOIST FEATURES:
 NOTE: Please specify chain length required when ordering, by adding a -5, -10, -15, -20 to the end of model number. As shown above in the chart, the standard is a 10 ft. lift.
Below you can get more information in the Tuffy Hoist Catalog and also information on our selection of beam clamps, plain beam trolleys, and geared beam trolleys to attach your chain hoist to a beam. New Nine9 ERgo system can be applied on any kind of driven tools (live tooling) and collet chucks. Rigidity is optimized and the quick change ability saves huge machine time. The excellent repeatability also saves you set-up time.
Please call: 440-463-3970 or email: [email protected] to schedule a demo or for more information Rocky Mountain Twist Drill in Ronan, Montana was featured on Fox Business News "Manufacturing Marvels" segment. Rocky Mountain Twist is the leading U.S. manufacturer of high performance, precision industrial cutting tools.   Swap a competitors boring bar in usable condition and upgrade to an Everede Bar! Will swap unused inserts and replace with Everede superior grades and chip breakers. (Limited Quantities)
o Excludes modifications such as added flats and cut bars o Excludes non-stock catalog items such as left hand bars or make to order items MADE IN USA! Quality With An Economical Advantage Highest Quality Lowest Prices Use Ordering code: SEP0502   Fullerton Tool end mills are now available with the HAIMER Safe-Lock® System to help improve your productivity and profits. The unique Safe-Lock design in cutting tools and tool holders combines high precision shrink fit clamping with a positive form locking mechanism. This prevents round cutting tools from being rotated or completely pulled out from tool holders during heavy machining.
On the safe side with Safe-Lock™:
Have questions? Contact Fullerton Tool by email [email protected] Phone: 800-248-8315 or Live Chat on Fullerton Tool's website edited by Bernard Martin 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!  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.  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.  HOOK ANGLE The inclination of a concave cutting face, usually specified either as Chordal Hook or Tangential Hook.
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.  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.  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.
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 difference between the limits of size. |
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