Irwin Industrial 10313ZR High Speed Steel Fractional Self-Starting - 1-1/8"

Ideal for drilling multiple diameter holes in a variety of materials, including steel, copper, brass, aluminium, PVC, wood, and laminates up to 1/8" thick. Speed Point tip design ensures true starts. Single flute cutting edge produces perfect round holes. Titanium nitride (TiN) coated bits offer maximum strength and longer life. Cobalt bits resist heat buildup and have 3-sided flattened shank that eliminates slipping in the the drill chuck.

• Single-flute cutting edge for greater control through steps
• Hex shank prevents slipping in drill chuck
• Also available with (TiN) coating for longer life
• New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
• Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
• Hole Sizes: 1-1/8"