Cobalt Step Drill #4 3/16"-7/8" 12 Steps
1/16" Steps, 3/8" Hex Shank
Item #: IRW 10234CB
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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3/8"
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12
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#4