Lenox (Qty. 1) Ship Auger Bit, 18" long, 1-1/8"diameter (28mm) Cutting angle reinforces cutting edge for greater durability to withstand the impact of encountering a nail. Secondary relief angle removes material faster. Oversized cutting head creates a hole larger than the bit for easy removal from the workpiece. Power groove on shank fits Lenox Uni-Drive System for convenient bit changes. Steel. Use for Wood. -2 Cutter Drill Bits. (31018)