Drill
JP1803084SActive Publication Date: 2025-07-08SUMITOMO ELECTRIC HARDMETAL CORP
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Patent Information
- Application Number
- JP2024013873D
- Authority / Receiving Office
- JP · JP
- Patent Type
- Designs
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2049-07-04
Smart Images
Figure 0001803084000001 
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Abstract
The article according to this design is a drill, which is used for drilling by cutting a workpiece without using cutting oil. The article according to this design has a hollow portion that extends from the front end on the cutting edge side to the middle in the longitudinal direction of the drill. The hollow portion has a function of releasing heat generated by the cutting edge during cutting.
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