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Irwin® Unibit® 10233CB Step Drill Bit, 1/4 in Dia Min Hole, 3/4 in Dia Max Hole, 9 Steps, M35 HSS-Co 5, 9 Hole Sizes, 3/8 in Shank

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Irwin_Unibit_10233CB.jpg

Features

  • 6X longer life
  • Laser etched sizes inside flute for easy and permanent hole size identification
  • Engineered with m35 cobalt steel for maximum life when drilling in tough steel
  • Geometry of single flute cutting edge drills true, round holes and provides maximum step control
  • Laser marked size
  • SpeedPoint® tip for fast starts

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Description

Irwin® Unibit® Step Drill Bit, Imperial, #3 Letter/Wire, 1/4 in Diameter Minimum Hole, 3/4 in Diameter Maximum Hole, 2-3/4 in Overall Length, 9 Steps, 1/16 in Step Depth, 9 Hole, 1 Flutes, 1/2 in, 1/4 in, 11/16 in, 3/4 in, 3/8 in, 5/16 in, 5/8 in, 7/16 in, 9/16 in, Radial Concave Flute, 3/8 in Shank, Hex Shank, SpeedPoint® Point, M35 Cobalt HSS Cutting Edge, M35 HSS-Co 5, Bright/Steam Oxide, Applicable Materials: Steel and Stainless Steel