Drill and/or welding tool

Drill and/or welding tool

  • CN 1,226,627 A
  • Filed: 01/07/1999
  • Published: 08/25/1999
  • Est. Priority Date: 02/21/1998
  • Status: Abandoned Application
First Claim
Patent Images

1. a drilling tool and/or drilling tool with drillstock that cooperates with the Access Division of drive unit (1), one has at least one towards the helical flute (6 of opening on every side, 7) drilling rod (2) links to each other with described drillstock on boring direction, the drill bit (3) that its diameter equals drilling rod (2) substantially is adjacent with drilling rod (2), described drill bit has one or more carbide chips (9) in the recess that leads to its free end opening (8), described carbide chip have from central division (9b) rise along three directions at least radially extend to always drill bit (3) on every side cutting region (9a) and described carbide chip between the cutting region (9a) of drill bit (3), have three with chip area (6,7) link to each other towards the drill bit groove (10 of opening on every side, 11,12), it is characterized in that, be provided with two chip areas (6,7) at most.

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