Irwin® Unibit® 10220 Hole Enlarging Step Drill Bit, 9/16 in Dia Min Hole, 1 in Dia Max Hole, 8 Steps, HSS, 8 Hole Sizes, 7/16 in Shank

25515122 MFG #: 10220
$0.00 / Each
Item currently not in stock. Lead time based upon availability from the manufacturer.
  • Type: Hole Enlarging
  • Drill Diameter Measurement System: Imperial
  • Letter/Wire Size: #20
  • Minimum Hole Diameter: 9/16
  • Maximum Hole Diameter: 1
  • Number of Steps: 8
  • Step Depth: 1/8
  • Number of Hole Sizes: 8
  • Number of Flutes: 1
  • Shank Size: 7/16
  • Shank Type: 3-Flat
  • Point Type: SpeedPoint®
  • Cutting Edge Material: HSS
  • Material: HSS
  • Finish: Bright
  • Applicable Materials: Aluminum, Brass, Copper, Laminates, Plastic and Stainless Steel
  • Drill Dia Measurement System: Imperial
Irwin® Unibit® Step Drill Bit, Hole Enlarging, Imperial, #20 Letter/Wire, 9/16 in Diameter Minimum Hole, 1 in Diameter Maximum Hole, 8 Steps, 1/8 in Step Depth, 8 Hole, 1 Flutes, 7/16 in Shank, 3-Flat Shank, SpeedPoint® Point, HSS Cutting Edge, HSS, Bright, Applicable Materials: Aluminum, Brass, Copper, Laminates, Plastic and Stainless Steel
QTY
  • Single flute cutting
  • Single flute cutting edge for greater control through steps
  • 3 flatted shank prevents slipping in drill chuck
  • 3 flatted shank prev
  • Patented single flut
  • Patented single flute cutting edge gives the user a true round hole every time
  • Geometry of single flute cutting edge drills true, round holes and provides maximum step c
  • Geometry of single f
  • Laser etched sizes inside flute for easy and permanent hole size identification
  • Laser etched sizes i
Single flute cutting edge for greater control through steps
Single flute cutting edge for greater control through steps
3 flatted shank prevents slipping in drill chuck
3 flatted shank prevents slipping in drill chuck
Patented single flute cutting edge gives the user a true round hole every time
Patented single flute cutting edge gives the user a true round hole every time
Geometry of single flute cutting edge drills true, round holes and provides maximum step control
Geometry of single flute cutting edge drills true, round holes and provides maximum step control
Laser etched sizes inside flute for easy and permanent hole size identification
Laser etched sizes inside flute for easy and permanent hole size identification