professional tool quality est. 1973
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Article number: 39691

Step Drill, HSS-E Cobalt 5%, 4-12 mm

  • 5% cobalt alloy material for max. durability
  • 9 drill steps increasing by 1 mm
  • for material up to 4 mm thickness
Ø:
4 - 12 mm
Material:
HSS Co5
Content of:
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Article number: 39690
Step Drill Set, 3 pcs., HSS-E Cobalt 5%, 4-12 / 4-20 / 4-30 mm
  • 5% cobalt alloy for maximum durability
  • for material up to 4 mm thickness
  • 4-20 and 4-30 mm with integrated edge breaker for simultaneous and double-sided deburring of sheets up to 1 mm thickness