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Mechanics Length

Triumph Mechanics Length Drill Bits are made from premium grade high speed steel to withstand high pressure and heat.  The black and bronze oxide finish resists corrosion, lengthening the life of your tool. 135 degree split point helps prevent walking and scarring.  Longer than screw machine length and shorter than jobber length, Triumph Mechanics Length Sets drill shallower, but are more durable.

Triumph Twist Drill Settriumph-logo-trinado.jpg
  • 135° Split Point
  • Premium Grade High Speed Steel
  • Black and Bronze Oxide
  • Heavy-Duty Construction. Sizes 3/16” and larger have 3 flats on shank
  • TriNado Drills are the Perfect No-Slip Tool For Your Cordless Drilling Needs
  • The TriNado drill series is longer than screw machine, but shorter than jobber length.
  • Available in either Straight or Reduced Shank


Style Description# of PiecesSize RangePart#
T19M Metal Index 13 Piece 1/16”-1/4” by 64ths 090547
T18M Metal Index 15 Piece 1/16”-1/2” by 32nds 090551
T180M Metal Index 21 Piece 1/16”-3/8” by 64ths 090549
T17MDC Clip-On Index 29 Piece 1/16”-1/2” by 64ths 090553
T17M Metal Index 29 Piece 1/16”-1/2” by 64ths 090552
T829M Metal Index 29 Piece 1/16”-1/2” by 64ths, 3/8” Reduced Shank 090550