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Product information

Description

General description

A777 Metric Cobalt Jobber Drill Bits are designed for heavy-duty applications, particularly in the Aerospace Industry. They feature a 135° split point, making them ideal for drilling tougher materials that generate greater heat during the process.

Technical specifications

  • Tip diameter: 3.30 mm
  • Working length: 36 mm
  • Overall length: 65 mm
  • Flute Geometry: Standard Helix, Right hand spiral, Thick Web
  • Point Angle: 0.30 mm - 0.95 mm (118° Conical point), 1.00 mm to 1.40 mm inclusive (135°), 1.50 mm and above (135° split point)
  • Surface Treatment: Bronze
  • Material: HSCo Cobalt steel
  • Standards: DIN 338 RN / BS328 / ISO 235
  • Features

    • Brand
      DORMER
    • Certification body
      DIN
    • Diameter
      3.3 mm
    • Tail diameter
      3.3 mm
    • Shank type
      Cylindrical
    Advice from

    Drill buying guide

    From hammer drills to drill drivers, your choice of drill will come down to the type of tasks you want to complete. For example, a cordless drill is better for driving screws while a corded drill is best suited to drilling. Read on for our tips on picking the right torque, RPM, impact rate, battery and chuck type.
    Drill buying guide
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