Irwin 11581 11581 Step Drill #21m 20-34mm 8 Sz

Irwin 11581 Features:

• 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
• 3 flatted shank prevents slipping in drill chuck
• Also available with titanium nitride coating for longer life
• Patented single-flute cutting edge gives the user a true round hole every time