D2139—21 pc. Cobalt Drill Set - 1/16 - 3/8"

Description

These premium bits are engineered to handle high tensile steels and hard-to-machine alloys and are typically used in aerospace applications. Now they are available to everyone. The 135 degree Split Point bits eliminate the bit from walking. These 21-Pc. sets offer the same bits as the 13-Pc. set plus 8 more through 3/8". Includes steel index. 135° split point bit sizes are: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", and 3/8".

Specifications

  • 1/16" - 3/8" in 64ths
  • 135° split point
  • Cobalt
  • Steel index included
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