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.

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