IRWIN 10312ZR - #12 3/8 in. Unibit Step Drill M12 Tru-Zero® magnetic hook measures accurate

Tru-Zero® magnetic hook measures accurate every time

This case has been refined over the past 15 years

dry coring and chipping in any mid to upper wall and ceiling application

867/1 Z TORX Bit: T40 x 25mm

15-tine rake

IRWIN 10312ZR - #12 3/8 in. Unibit Step Drill M12 Tru-Zero® magnetic hook measures accurateThe IRWIN 10312ZR Step Drill Bit is ideal for drilling holes in thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates. Featuring a patented single flute cutting edge, it ensures perfectly round holes and provides greater control through the steps. Its 3 nut shank prevents slippage in the drill chuck, while the SpeedPoint tip improves penetration and prevents walking. Made of high speed steel, this bit is strong and