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Triumph Twist Drill 099867 MM25HD 25 Pc Thunderbit Metric Drill Bit


25 piece heavy duty, jobber length, black & bronze oxide metric twist drill bits with metal index.

Standard Equipment:

  • 25 Twist Drill Bits 1mm to 13mm by 0.5 mm
  • Metal Index


  • Point: 135° Split Point
  • Type: Jobber Length
  • Size Range: 1mm to 13mm by 0.5mm
  • Material: Premium Grade High Speed Steel
  • Coating/Finish: Black and Bronze Oxide
  • Other: Heavy-Duty Construction


  • High Speed Steel for general purpose drilling in a variety of materials
  • Friction-reducing black and bronze oxide surface for higher drilling speeds
  • 135 degree self-centering split point prevents walking and provides quick penetration
  • Made in the U.S.A.

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