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Unibit® Hex Shank HSS #21 Hole Enlarging Step Drill Bit, 13/16 - 1 3/8 in

Item: 786409   Model: 585-10221
$91.29 Each

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  • Type: Hole enlarging
  • Bit diameter: 13/16 - 1 3/8 in
  • Shank type: 3 flatted hexagonal

Unibit® Hex Shank HSS #21 Hole Enlarging Step Drill Bit, 13/16 - 1 3/8 in: It is made of tough steel for maximum life.

Unibit® Hex shank HSS #21 hole enlarging step drill bit with 13/16 - 1 3/8" Dia includes 1 number of flutes and 3 flatted hexagonal shank. Bit with 7/16" shank is ideal for drilling holes into thin materials.

  • Type: Hole enlarging
  • Bit diameter: 13/16 - 1 3/8 in
  • Shank type: 3 flatted hexagonal
  • Shank diameter: 7/16 in
  • Number of flutes: 1
  • Single-flute cutting edge for greater control through steps
  • 3 flatted shanks prevents slipping in drill chuck
  • Patented single-flute cutting edge gives the user a true round hole every time
  • Also available with titanium nitride coating for longer life
  • Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates

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