drill bits & sets
irwin industrial tool . 56inch x 17inch speedbor ship auger bit with weld tec 30430
ship auger bit made stronger and last longer because a harder cutting edge is welded to the base material two times the nail cutting life patent pending welded cutting edge aggressive screw pitch wide flutes 7 16 quick change impact shank fully forged body 9 16 diameter sku jnsn36354
irwin industrial