Irwin 10239 Step Drill Bit, Self-Starting, 1/2', Size In=7/8 & 1-1/8 Pull-a-part Dimeter: 3/8 in

Dimeter: 3/8 in

Blue ABS handle

Gatorback backing is soft and flexible

Overall Length : 6-3/8 in

Masonry drill Bit is a fast and durable bit for the professional user

Irwin 10239 Step Drill Bit, Self-Starting, 1/2', Size In=7/8 & 1-1/8 Pull-a-part Dimeter: 3/8 inHighlights: Size 7 8" & 1 1 8" Size KO=1 2 & 3 4 Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates Single flute cutting edge for greater control through steps Patented single flute cutting edge gives the user a true round hole every time 3 faltted shank prevents slipping in drill chuck New SpeedPoint tip penetrates faster than previous Unibits and prevents walking Speed point tip