HSS A/C Extension

HSS A/C Extension

  • Ideal for drilling in mild steel where extra length for reach is required
  • 135 degree split point for self-centering and reduces thrust
  • Black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow
  • Manufactured to Aerospace Standard 907
  • Sizes smaller than 1/16 and #52 have the 118 degree standard point

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