Irwin - Unibit 3/16 to 7/8 in. X 6 in. L High Speed Steel Step Drill Bit Square Shank 1 pc

The Irwin Unibit self-starting step drill bit is easy to use. This product has a 3/16-7/8 in diameter. This self-starting step drill bit is made of high-speed steel with a finish. It has a 3/8 In. shank with a 1/8 In. step thickness. Packaged 1 each.