Countersinks & Counterbores

Countersink and counterbore tools create holes for fasteners to sit flush with or below the surface of a workpiece. Countersinks make cone-shaped holes that accommodate the head of a screw or rivet. They’re also used for chamfering and deburring. Counterbores increase the diameter at the mouth of a pre-drilled hole, creating a seat for a fastener.

Frequently Purchased Countersinks & Counterbores