PM56221 9/16'' x 21'' SDSMAX

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  • TriCarb®  grade tip guarantees longer life with faster penetration due to increased chiseling action.
  • ThunderTwist® flute design, combined with a copper brazing alloy creates the most reliable drill bit on the market.
  • Made with the highest quality American chrome-molybdenum ­nickel steel available.
  • Vacuum heat treated, and shot peened for superior strength under the roughest conditions.
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