4CKD6 Countersink & Center Drill Sets

Bulk orders will be discounted, please contact us.

Countersinks expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece. This can prevent the workpiece material from swelling when a screw is installed in the hole and tightened down. They can also be used to debur holes for a smooth finish. These sets contain multiple countersinks in a range of sizes.