Irwin Bi-Metal Self Feed Bit 4-5/8 In. 1 pk.

Irwin Bi-Metal Self Feed Bit 4-5/8 In. 1 pk.

This self-feed drill bit is used for drilling large diameter holes in wood for pipe, conduit and other applications. All bits have a 7/16 In. hex quick change impact shank that fits 1/2 In. or larger electric drills.