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9STM4-20
  • Product Code: 9STM4-20
  • Product Description: 9STM4-20 Alpha 4-20mm Step Drill
  • Availability: 1

  • $50.37

  • Ex GST: $45.79

9STM4-20 Alpha 4-20mm Step Drill


    Alpha Step Drills replace individual drills offering a wide range of sizes in a single drill.
  • Manufactured from Premium HSS raw material, and TiN Coated for reduced heat and long life.
  • Ideal for drilling thin materials such as stainless steel, copper, brass, aluminium, plastic and laminates.
  • Self-starting tip to prevent drill wandering.
  • Drilling and deburring in the one process.
  • Laser marked diameters that will not wear off with use.
  • 3 flats on shank to prevent slipping in chuck.

  • No of Steps: 9
  • Step Sizes: 4, 6, 8, 10, 12, 14, 16, 18, 20mm
  • Cutting Depth: 3mm
  • Shank Dia: 8.0mm
  • Shank Type: 3 Flats
  • Recommended Cutting Speeds: Steel 400 - 1500 rpm

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