Irwin 5/16 In. x 18 In. Carbon Steel Straight Shank Installer Drill Bit spread A mirrored door back provides

A mirrored door back provides for extra face time and elegance

Application: open attics of both new and existing structures

Undercuts door lambs and other wall base obstacles

for replacement vinyl insert)

Irwin 5/16 In. x 18 In. Carbon Steel Straight Shank Installer Drill Bit spread A mirrored door back providesIrwin 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.