IRWIN, 10231, Step Drill Bit, 1/8 in to 1/2 in, High Speed Steel, Hex Shank

The IRWIN UNIBIT HSS Fractional Self-Starting Step Drill Bit is made of high speed steel. Hole sizes are permanently laser-etched on the inside of the flute and will not wear away for easy identification throughout the life of the bit. The bit features a quick change hex shank that secures easily in the drill chuck.

Features

• Geometry of single-flute cutting edge drills true, round holes and provides maximum step control.
• 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
• Hex shank prevents slipping in drill chuck
• Also available with (tin) coating for longer life

• Size Range: 1/8 in - 1/2 in
• Weight: 0.134 lbs
• Length: 3.100 in
• Width: 0.800 in
• Height: 6.100 in
• Material: High Speed Steel
• Shank Type: Hex
• Coating: Tin (optional)
• Country of Origin: United States