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IRWIN No. 3 Self-Starting Unibit, 1/4" to 3/4" Item # 794749
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- 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 Diam||1/4 in [Min], 3/4 in [Max]|
|Cutting Edge Material||HSS|
|Material Thickness||3/8 in [Max]|
|No. of Steps||9|
|shank diameter||1/8 in|
|Tool Type||fastening tool|
From the Manufacturer|Powered by
Multiple Hole Sizes, 1 Bit
Engineered for Speed and Control
IRWIN TOOLSFor over a century, innovation has been the hallmark of IRWIN TOOLS. Beginning in 1885, with the development of the first IRWIN Auger Bit, and progressing with the introduction of Vise-Grip Locking Tools, SPEEDBOR Flat Bits, MARATHON Saw Blades, and QUICK-GRIP Bar Clamps, IRWIN has been at the forefront of the industry, creating superior tools for the professional tradesman.