High Speed Steel Fractional Hole Enlarging

  • Single-flute cutting edge for greater control through steps
  • 3 flatted shank prevents slipping in drill chuck
  • Also available with titanium nitride coating for longer life
  • Patented single-flute cutting edge gives the user a true round hole every time
  • Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
  • Pilot hole required
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Item #

Item Name

Cutting Diam.

# of Steps

Shank Diameter

Price

Add To Cart/Request Quote
585-10231 N/A 1/8"-1/2" Unibit Step Drill 13 Steps 1/4" Shank N/A 1/8"-1/2" N/A 13 N/A 1/4" $19.36 Add To Cart
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585-10233 N/A 1/4"-3/4" Unibit Step Drill 9 Steps 1/8" Shank N/A 1/4"-3/4" N/A 9 N/A 1/8" $32.74 Add To Cart
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585-10235 N/A 1/4"-1 3/8" Unibit Step Drill 10 Steps 1/8" Shank N/A 1/4"-1 3/8" N/A 10 N/A 1/8" $73.09 Add To Cart
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585-10232 N/A 3/16"-1/2" Unibit Step Drill 6 Steps 1/4" Shank N/A 3/16"-1/2" N/A 6 N/A 1/4" $19.95 Add To Cart
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585-10234 N/A 3/16"-7/8" Unibit Step Drill 12 Steps 1/8" Shank N/A 3/16"-7/8" N/A 12 N/A 1/8" $41.23 Add To Cart
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585-10310 N/A 1/2" Unibit Step Drill 1/4" Shank N/A 1/2" N/A N/A 1/4" $19.35 Add To Cart
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585-10220 N/A 9/16"-1" Unibit Step Drill 8 Steps 1/2" Shank N/A 9/16"-1" N/A 8 N/A 1/2" $41.09 Add To Cart
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585-10221 N/A 13/16"-1 3/8" Unibit Step Drill 10 Steps 1/2" Shank N/A 13/16"-1 3/8" N/A 10 N/A 1/2" $83.45 Add To Cart
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585-10239 N/A 7/8"-1 1/8" Unibit Step Drill 2 Steps 1/8" Shank N/A 7/8"-1 1/8" N/A 2 N/A 1/8" $56.99 Add To Cart
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