Create deep, clean holes quickly and easily in soft or hard wood.
Lead screw pulls the bit into the work, eliminating extra pressure and strain.
Can be used with a hand or electric drill.
Sizes: 1/4", 5/16", 3/8", 15/32", 9/16", 5/8", 11/16", 25/32.
Shank: 1/2" length: 24"