IRWIN 10312ZR - #12 3/8 in. Unibit Step Drill M12 The kit also features the

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

Fleece lined

This case has been refined over the past 15 years

Dimensions (L x W x H): 15-7/8" x 4-1/4" x 10-3/8" (404 mm x 108 mm x 264 mm)

Metal reinforced top handle

IRWIN 10312ZR - #12 3/8 in. Unibit Step Drill M12 The kit also features theThe 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