SKU: HSS-DB-1/4

HSS Drill Bit – Fully Ground 1/4″ Cobalt M35 ( Pack Of 10)

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COBALT STEEL 1/4 ” Drill bit

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Description

  • COBALT STEEL – Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, ideal for repeated drilling in metalworking.
  • FOR STAINLESS STEEL – Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for heat treated steel / hardened steel / high carbon steel. Please try to adjust the RPM when it fails to penetrate according to our suggested RPM chart.
  • SELF-CENTERING – The 135° quick-cut split points can penetrate metals quickly with less pressure without “walking” or “wandering”. No center punch is needed.
  • 10PC SET – The set includes 10pcs of 1/4-inch diameter M35 grade cobalt steel twist drill bits, packed in a convenient plastic case for easy taking to worksites.