High Speed Steel Fractional Self-Starting

Irwin Tools

SKU / Product InfoQuantity
10231
#1, Hole Sizes: 1/8" - 1/2", Hole #: 13 steps, Max Thickness: 1/8"
10232
#2, Hole Sizes: 3/16" - 1/2", Hole #: 6 steps, Max Thickness: 3/8"
10233
#3, Hole Sizes: 1/4" - 3/4", Hole #: 9 steps, Max Thickness: 1/8"
10234
#4, Hole Sizes: 3/16" - 7/8", Hole #: 12 steps, Max Thickness: 1/8"
10235
#5, Hole Sizes: 1/4" - 1-3/8", Hole #: 10 steps, Max Thickness: 1/8"
10239
#9, Hole Sizes: 7/8" and 1-1/8", Hole #: 2 steps, Max Thickness: 1/8"
10310
#10, Hole Sizes: 1/2", Hole #: N/A, Max Thickness: N/A
10311
#11, Hole Sizes: 7/8", Hole #: N/A, Max Thickness: N/A
10312
#12, Hole Sizes: 3/8", Hole #: N/A, Max Thickness: N/A
10313
#13, Hole Sizes: 1-1/8", Hole #: N/A, Max Thickness: N/A
10314
#14, Hole Sizes: 1-7/32", Hole #: N/A, Max Thickness: N/A

Quick Overview

  • Single-flute cutting edge for greater control through steps
  • Hex shank prevents slipping in drill chuck
  • Also available with (TiN) coating for longer life
  • New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
  • Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
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Additional Information

Manufacturer: Irwin Tools
 
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