Each of the bits in the Makita 3-Piece Countersink Drill Bit Set (A-99661) drills a pilot hole, countersinks and counterbores in one easy operation. Each has a drill bit that can be adjusted to the desired drilling depth. The 1/4'' hex shanks fit most impact drivers and drill/drivers. Set includes #6, #8 and #10 countersinks plus a hex wrench.
Features:
Drills pilot hole, countersinks and counterbores in one easy operation
Drill bit can be adjusted to the desired drilling depth
1/4'' hex shank fits most impact drivers and drill/drivers
Pilot hole for screw prevents wood from splitting
Produces clean holes in hard and soft wood
Tapered drill bit for superior speed and a perfect fit
Four-cutter countersink design for a clean finish
Set screw allows easy drill bit replacement
Includes #6, #8, and #10 countersinks plus a hex wrench