Precision machined to work with quick change chucks, impact drivers, and other tools designed to accept a 1/4" hex shank.
- Drill pilot hole & countersink in one step
- Use standard drill bit for replacement
- Thru hardened alloy steel
- Large Hardened set screw
Included in this set: 5 combination countersinks - 5/64", 3/32", 7/64", 1/8", 9/64", 1/8" ,& Hex key.
Make It Snappy® Gold Screw Countersinks will drill the pilot hold for the screw, countersink for the head of the screw or counterbore for a plug. Made of thru-hardened alloy steel for long life and can be resharpened. The signature gold set screw is oversized to prevent slippage and makes it easy to adjust the pilot depth to match the length of a screw or to replace the drill with a standard round drill bit.
The 5/64" - 1/8" have a 3/8" counterbore and the 9/64" has a 1/2" counterbore.