IRWIN® High Speed Steel Fractional Self-Starting, 1/8 in to 1/2 in, 13 Steps (585-10231)

New SpeedPoint? tip provides 6X faster initial penetration time than before, and eliminates the need for center punching
Single-fluted cutting edge assures true round holes, and allows greater control with less vibration
Ideal for drilling holes in thin materials such as mild steel, copper, brass, aluminum, plexiglass, wood, and laminates

• Cutting Diameter = 1/8 in [Min], 1/2 in [Max]
• Cutting Edge Material = HSS
• Material Thickness = 1/8 in [Max]
• Measurement Type = Fractional
• No. of Steps = 13
• Packing Type = Carded
• Shank Diameter = 1/4 in