High Speed Steel Fractional Self-Starting


Item # 10231 shown

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High Speed Steel Fractional Self-Starting Features:

  • 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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Shop OnlineItem #DescriptionHole SizesNumber of HolesMaximum Material Thickness
Shop Online 10231#11/8" - 1/2"13 steps1/8"
Shop Online 10232#23/16" - 1/2"6 steps3/8"
Shop Online 10233#31/4" - 3/4"9 steps1/8"
Shop Online 10234#43/16" - 7/8"12 steps1/8"
Shop Online 10235#51/4" - 1-3/8"10 steps1/8"
Shop Online 10239#97/8" and 1-1/8"2 steps1/8"
Shop Online 10310#101/2"N/AN/A
Shop Online 10311#117/8"N/AN/A
Shop Online 10312#123/8"N/AN/A
Shop Online 10313#131-1/8"N/AN/A
Shop Online 10314#141-7/32"N/AN/A