Description

Heavy Duty Split Point, Cobalt Steel, Jobber Length Drill Bit, Size: 57, Dec. Equivalent .0430, Flute Length 3/4, Overall Length 1-3/4, M42 Cobalt, Premium Grade Steel --- While we are happy to sell this product in any quantity you desire, we prefer this item be purchased in multiples of 12 in order to not break product packaging.
  • 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
Specifications
Size#57

#57 Cobalt Heavy Duty Jobber Length Drill Bit, Drill America, D/ACO57

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