The IDEAL Nailbiter premium ship auger bit extension is used to extend the length of a ship auger bit to reach tight locations. Together they easily create holes for running electrical wiring in a building. It is also capable of drilling through drywall, vinyl and plastic.
Compatable with IDEAL Nailbiter and Resi-Master auger bits and other 7/16-in hex shank auger bits
Adds 18 inches to regular bit length
Six flats on shank
Heavy-duty double set screw type
Dual locking hex screws
Allen wrench included
Quick change shank design
Full black oxide coating prevents rust
Full body, dual induction heat treatment ensures durability, minimizes warping and delivers long lasting performance