Irwin 39105 39105 - STRT SHNK INSTLR WOOD 5/16"X18" RND SHK

Power Drill Installer Bit - Wood Installer Bit - 5/16" x 18". Constructed of premium alloy steel for boring into a variety of materials including wood, plaster, and metal lath. Special 82 degree point for fast boring. Wire hole at the tip of the bit makes it easy to pull wire through walls, ceilings, and floors. Ideal for installation of small wire for telephones, cable, TV, computers, and security systems. Diameter: 5/16". Shank Size: .285". Overall Length: 18".