Far superior to auger bits, these Wood Boring Bits allow you to easily change direction when drilling holes to modify the hole size. New low-torque design greatly reduces the wrist fatigue because from standard auger bits. This replacement shaft works for 7/8'', 1-1/8''and 1-3/8'' (22 mm, 29 mm and 35 mm) bits.

• Replacement shaft for 7/8'', 1-1/8''and 1-3/8'' (22 mm, 29 mm and 35 mm) bits
• Drill head not included
• Works in both 3/8'' and 1/2'' drills
• Hardened steel for long life.