Irwin 5/16 In. x 18 In. Carbon Steel Straight Shank Installer Drill Bit spread Undercuts door lambs and other

Undercuts door lambs and other wall base obstacles

Forged tips offer maximum grip and eliminate stripping and slipping

for replacement vinyl insert)

565 cutting guide

30-40 Burgers

Irwin 5/16 In. x 18 In. Carbon Steel Straight Shank Installer Drill Bit spread Undercuts door lambs and otherIrwin Straight Shank Wood Installer Bits feature an 82 point for fast, smooth drilling in wood. These bits are made with a hole in the flute for easy wire pulling through walls, ceilings and floors. They have a 3 flatted shank to prevent slipping in drill chucks and the shank also includes a hole for wire pulling. Made from premium high carbon steel for extended drilling life in wood.