Irwin 5/16 In. x 18 In. Carbon Steel Straight Shank Installer Drill Bit

Irwin 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.