High Speed Steel Fractional Hole Enlarging

Item # 10220 shown

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High Speed Steel Fractional Hole Enlarging Features:

  • 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 #DescriptionHole SizesNumber of HolesMaximum Material Thickness
10220#209/16" - 1"8 steps1/8"
10221#2113/16" - 1-3/8"10 steps1/8"