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Drill America D/ASTCO7/16 Heavy Duty Premium Quality Stub Screw Machine Length Drill, 7/16 in Drill - Fraction, 0.4375 in Drill - Decimal Inch, Cobalt, Gold

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Features

  • Screw machine drills are also know as stub or stubby drills
  • They have a short, rugged construction performs well in a broad range of materials
  • Cobalt drill bits are effective in drilling tough, high tensile strength materials
  • Display high red hardness, permitting speeds up to 30 Percent greater than with conventional M2 high speed
  • 135 deg split point tip for fast penetration and accurate drilling
  • Sizes smaller than 1/16 or 52, and larger than 1/2 have the 118 standard point
  • Popular in the automotive and construction industries
  • They are often used in screw machine setup where spindle clearance is limited
  • Round shank for use in a wide range of tool holding systems

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