Ideally, the proper spotting angle should have larger point angle than that of your drill, so the center of a drill shall be the first point to contact workpiece to prevent the drill from "walking".
The Nine9 ACE spotting tool is not only produce better hole position but also extends the tool life of the drill and improves production efficiency. . Nowadays, to cope with market demands, we supply various point angles.
The ACE Spot Drill design assures precise positioning of the insert as a result of the dual clamping screwed design. This results in vibration free while cutting.
The symmetric 2-flute edge design reduced the lateral forces and enhances the rigidity enabling to you to run higher feed rates.
Additionally, the double point angles make the insert tip stronger and prolong the service life of the tool. Optimal internal coolant design brings better balancing to run at high speed.
The ACE Set Drill Design enables a very precise positioning of the inserts a result of the dual clamping screwed design.
This also ensures vibration free while cutting.
The internal coolant design enhances the balance so you can run at higher speeds.
2-flutes edged is symmetric, it reduces the lateral force.