Pop these countersinks into power drills, screwdrivers, and other tools that accept 1/4" hex shanks. Tools grip their hex shanks more securely than round shanks to tackle jobs that require higher torque.

To create a clean, smooth finish on your material, these countersinks have specially designed spiral flutes that reduce chip buildup on the cutting edge.

These countersinks have an angled hole that passes through the center of the tool to reduce vibration and chatter for creating smooth cuts and preventing chips from clogging the tool.

When one end dulls, turn the countersink around to use the other end. An angled hole passes through the center of the countersink to reduce vibration and chatter, which creates smooth cuts and prevents chips from clogging the tool.

The 100° countersink angle is compatible with the profile of rivets.

These highly accurate countersinks have a tolerance of 0" to +0.001", so you can use them with computer-controlled machines.

For use with computer-controlled machines, these highly accurate countersinks have a tolerance of 0" to +0.001".

For general purpose use.

To remove the need for a starter hole, the drill point is incorporated into the countersink flutes.

For applications where the workpiece will go through several machining processes, these countersinks bevel the outer edges of the hole and provide an additional 120° chamfer to prevent damage to the center hole.

No need to create a starter hole—the drill point is incorporated into the countersink flutes.

Use on plastic and most metals.

Also known as step drill bits. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws.