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Irwin® Unibit® 10312ZR Step Drill Bit, 3/8 in Dia Min Hole, 3/8 in Dia Max Hole, HSS, 1 Hole Sizes, 1/4 in Shank

Selected Irwin_Unibit_10311ZR.jpg
Irwin_Unibit_10311ZR.jpg

Features

  • Geometry of single flute cutting edge drills true, round holes and provides maximum step control
  • Laser etched sizes inside flute for easy and permanent hole size identification
  • SpeedPoint® tip for fast starts

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Description

Irwin® Unibit® Step Drill Bit, Imperial, #12 Letter/Wire, 3/8 in Diameter Minimum Hole, 3/8 in Diameter Maximum Hole, 1 Hole, 1 Flutes, 1/4 in Shank, Hex Shank, Self-Starting SpeedPoint® Point, HSS Cutting Edge, HSS, Bright, Applicable Materials: Aluminum, Brass, Copper, Laminates, Plastic and Stainless Steel