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Irwin® Unibit® 10313ZR Self-Starting Step Drill Bit, 1-1/8 in Dia Min Hole, 1 Steps, 1 Hole Sizes, 7/16 in Shank

Selected Irwin_Unibit_10311ZR.jpg
Irwin_Unibit_10311ZR.jpg

Features

  • Single flute cutting edge for greater control through steps
  • SpeedPoint® tip for fast starts
  • New SpeedPoint® tip penetrates faster than previous Unibit®s and prevents walking
  • Laser etched sizes inside flute for easy and permanent hole size identification
  • Hex shank prevents slipping in drill chuck
  • Geometry of single flute cutting edge drills true, round holes and provides maximum step control

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Description

Irwin® Unibit®, 10313ZR, Step Drill Bit, Self-Starting, Imperial, #13 Letter/Wire, 1-1/8 in Diameter Minimum Hole, 1-1/8 in Diameter Maximum Hole, 1 Steps, 1 Hole, 1 Flutes, 7/16 in Shank, Hex Shank, Self-Starting SpeedPoint®, HSS Cutting Edge, Uncoated, Applicable Materials: Aluminum, Brass, Copper, Laminates, Plastic and Stainless Steel