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

Tru-Zero® magnetic hook measures accurate every time

Metal reinforced top handle

This case has been refined over the past 15 years

The kit also features the HDH181X Brute Tough™ 1/2 In

A-95956-25)

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