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#3 9-Hole Sizes (1/4 In.-3/4 In.), 1/16 In. Increments


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$73 .73
$51 .99

#3 9-Hole Sizes (1/4 In.-3/4 In.), 1/16 In. Increments

The IRWIN® Unibit® No 3 Cobalt Step Drill Bit 9 Hole Sizes lets you drill through tough materials like stainless steel easily and quickly. Its SpeedPoint™ tip ensures faster starts with each use. Its M35 cobalt steel construction gives the Irwin Unibit No 3 bit maximum durability and long-lasting toughness, so it stays sharp and ready-to-use up to six times longer than traditional bits. With its radial-concave flute design, you achieve rounder holes with less vibration and more control. When drilling with the Unibit drill bit, slippage in the chuck is greatly reduced thanks to the bit's three-flatted shank. Even after years of using the bit, quickly identify the hole sizes you need using the permanent laser-etched sizes marked on the side of the bit.

  • Drill round holes quickly and easily through tough materials like stainless steel with Irwin Unibit No 3 bit
  • Faster starts made possible with SpeedPoint tip
  • Unibit drill bit is made of M35 cobalt steel for long-lasting durability and toughness
  • Radial-concave flute for reduced vibration and rounder holes
  • Irwin step drill bit features three-flatted shank to eliminate chuck slippage
  • Permanent laser-etched sizes let you identify hole size after years of use
  • Limited lifetime warranty
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