Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits


Item # 63124 shown

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Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits Features:

  • Constructed of M-35 5 percent cobalt high speed steel for super abrasive resistance in tough metals
  • Heavy duty spiral flute design produces faster chip ejection
  • Shorter cutting lips reduce torque for drilling in high tensile strength materials.
  • 135-degree split point reduces feed pressure for easier penetration without work hardening

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Item #SizeTwist LengthOverall LengthBulk
631041/16"7/8"1-7/8"*
631055/64"1"2"*
631063/32"1-1/8"2-1/4"*
631077/64"1-1/2"2-5/8"*
631081/8"1-5/8"2-3/4"*
631099/64"1-3/4"2-7/8"*
631105/32"2"3-1/8"*
6311111/64"2-1/8"3-1/4"*
631123/16"2-5/16"3-1/2"*
6311313/64"2-7/16"3-5/8"*
631147/32"2-1/2"3-3/4"*
6311515/64"2-5/8"3-7/8"*
631161/4"2-3/4"4"*
6311717/64"2-7/8"4-1/8"*
631189/32"2-15/16"4-1/4"*
6311919/64"3-1/16"4-3/8"*
631205/16"3-3/16"4-1/2"*
6312121/64"3-5/16"4-5/8"*
6312211/32"3-7/16"4-3/8"*
6312323/64"3-1/2"4-7/8"*
631243/8"3-5/8"5"*
6312525/64"3-3/4"5-1/8"*
6312613/32"3-7/8"5-1/4"*
6312727/64"3-15/16"5-3/8"*
631287/16"4-1/16"5-1/2"*
6312929/64"4-3/16"5-5/8"*
6313015/32"4-5/16"5-3/4"*
6313131/64"4-3/8"5-7/8"*
631321/2"4-1/2"6"*
633041/16"7/8"1-7/8"
633055/64"1"2"
633063/32"1-1/8"2-1/4"
633077/64"1-1/2"2-5/8"
633081/8"1-5/8"2-7/8"
633099/64"1-3/4"2-7/8"