Cobalt Step Drill #20 9/16-1" 8 Steps
Hole Enlarging, 7/16" Hex Shank
Item #: IRW 10220CB
Irwin Unibit® Cobalt HSS Step Drills
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. Use on Stainless Steel or other tough materials.
- SpeedPoint® tip for fast starts(except #1,#20)
- M35 Cobalt steel for maximum life when drilling in tough steel
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. Use on Stainless Steel or other tough materials.
Item Specifications
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Unibit
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7/16"
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8
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#20