Irwin 10239 Step Drill Bit, Self-Starting, 1/2', Size In=7/8 & 1-1/8

Highlights: 

• Size 7/8" & 1-1/8"
• Size KO=1/2 & 3/4
• 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
• Patented single-flute cutting edge gives the user a true round hole every time
• 3 faltted shank prevents slipping in drill chuck
• New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
• Speed point tip provides faster initial penetration time and eliminates the need for center punching
• Single-fluted cutting edge assures true round holes and allows greater control with less vibration
• For drilling holes in thin materials such as mild steel, copper, brass, aluminum, plexiglass, wood and laminates

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We ship within the contiguous United States.

Returns accepted within 30 days by mail. Return shipping is paid by the customer. See our refund policy.