HSS Left Hand Stub Drills

HSS Left Hand Stub Drills

  • Screw machine drills are also know as stub or stubby drills
  • Short, rugged construction performs well in a broad range of materials. 
  • A dependable, general purpose drill designed to perform in a broad range of materials in the iron and steel families
  • Manufactured to National Aerospace Standard 907
  • 135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you.
  • Ideal for portable or machine drilling
  • Popular in the automotive and construction industries. They are often used in screw machine setup where spindle clearance is limited.
  • Features a left hand helix for screw machine applications where spindles rotate counter-clockwise. Left hand drills can also be used to drill out broken bolts
  • Sizes smaller than 1/16 and #52 have the 118 degree standard point

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