3ZUF4 Countersinks

Bulk orders will be discounted, please contact us.

Cobalt steel countersinks are harder than high-speed steel countersinks and provide good wear resistance when machining hard materials at high speeds. Single-flute countersinks are suitable for high-speed countersinking operations. They leave clean edges on holes and have a high, positive rake that reduces vibration as they expand the top of an existing hole in a workpiece to ensure screws install flush with the surface of the workpiece.