Deep hole drill

Deep hole drill

  • CN 102,489,752 A
  • Filed: 12/05/2011
  • Published: 06/13/2012
  • Est. Priority Date: 12/05/2011
  • Status: Active Application
First Claim
Patent Images

1. a deep hole drill is made up of handle of a knife, knife bar and blade, and knife bar is provided with channel of chip removal, and blade comprises at least two cutting edges, it is characterized in that:

  • a chip dividing groove is set on each cutting edge at least;

    Said chip dividing groove edge is the different circumference settings at center and the anchor ring zero lap that each chip dividing groove can be inswept with the knife bar axis.

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