4-Piece Wood Screw Countersink/Pilot Hole Drill Bit Set

Our Wood Screw Countersink Drill Bits are shaped specifically for traditional wood screws with a tapered head, thicker shank and narrower thread. Note how the black countersink portion of the bit extends along the pilot bit to provide clearance for the shank of the screw. This allows you to enjoy the increased strength of screws with a thicker shank without compromising the grip of the threads. This 4-Piece Set includes bits for #6, #8, #10 and #12 wood screws.

Features:

• Use for wood screws with the traditional thicker shank
• 1/4'' hex shank for easy change-out with driver bits
• Durable black oxide coating on countersinks
• Pilot bits and countersinks are separable