Best Cobalt Oxide

Drill America - D/ACO43P12 #43 Cobalt Heavy Duty Drill Bit (Pack of 12), D/ACO Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • performance is similar to uncoated tools.
  • Round shanks allow use with a wide variety of toolholding systems.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
  • Manufactured to National Aerospace standard 907.
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Drill America - D/ACO40P12#40 Cobalt Heavy Duty Drill Bit (Pack of 12), D/ACO Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • performance is similar to uncoated tools.
  • Round shanks allow use with a wide variety of toolholding systems.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
  • Manufactured to National Aerospace standard 907.
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Drill America D/ACO30P12 #30 Cobalt Heavy Duty Drill Bit (Pack of 12), D/ACO Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • performance is similar to uncoated tools.
  • Round shanks allow use with a wide variety of toolholding systems.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
  • Manufactured to National Aerospace standard 907.
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Drill America 5/16 Cobalt Stubby Threaded Shank Drill Bit Overall Length 5/8 TSD Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • performance is similar to uncoated tools.
  • Threaded shank is for use with threaded-spindle tools, often used in aerospace and automotive applications.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
  • Featured with 135 degrees heavy duty split point and surface treated for drilling hard, tough, high tensile strength materials.
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Drill America - D/ACO3/8X9/16 9/16\ Cobalt Reduced Shank Drill Bit with 3/8\ Shank, D/ACO Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • performance is similar to uncoated tools.
  • Round shanks allow use with a wide variety of toolholding systems.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
  • Manufactured to National Aerospace standard 907.
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Drill America 33 Piece m35 Cobalt Reduced Shank Drill Bit Set in Wood Case (1/2\ - 1\ x 64ths), DWDCO Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • performance is similar to uncoated tools.
  • Round shanks allow use with a wide variety of toolholding systems.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
  • Manufactured to National Aerospace standard 907.
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Drill America - D/ASTCO1/4P12 1/4\ Cobalt Heavy Duty Split Point Stub Drill Bit (Pack of 12), D/ASTCO Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • performance is similar to uncoated tools.
  • Round shanks allow use with a wide variety of toolholding systems.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
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Drill America DWD115J-CO-SET 115 Piece m35 Cobalt Drill Bit Set 1/16 -1/2 A-Z #1-#60 DWDCO Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel....
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • Round shanks allow use with a wide variety of toolholding systems.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
  • 115 piece drill bit set comes in a metal case.
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Drill America – D/A833SD-CO-SET 33 Piece m42 Cobalt Reduced Shank Drill Bit Set (1/2″ – 1″ x 64ths), D/ACO Series

  • Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
  • Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools.
  • performance is similar to uncoated tools.
  • Round shanks allow use with a wide variety of toolholding systems.
  • When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
  • 33 piece drill bit set comes in a metal case.
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