IRWIN IRW-10312ZR high speed steel step drills #12 3/8″

Features & Benefits

IRWIN Unibit Self-Starting Single Hole Step Drill #10312ZR, 3/8″ Hole Dia., 1/4″ Shank

• High Speed Steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and non-ferrous materials.
• Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
• Hex shanks are used higher speed machining operations due to its angled shape. They are constructed of six sides and fit into a quick change chuck. They are commonly made of a 1/4″ shank.