Snappy Tools 93052 1/8" Hex Countersink Set with #2 Square Driver Bit

This countersink tools comes with various sizes of pilot holes and counterbores. Each tool has a replaceable HSS twist drill for the pilot hole and a precision milled 3" long driver bit with a hardened #2 Square Drive Insert. It is designed to engage the Centrotec chuck for precise alignment between the bit and drill shaft, reducing run-out and maximizing torque transfer. The specific sizes mentioned are 3/32 inch x 3/8 inch, 7/64 inch x 3/8 inch, 1/8 inch x 3/8 inch, and 9/64 inch x 1/2 inch. The tools also include a 1/8 inch hex key.