drill

JP1798841SActive Publication Date: 2025-05-20SUMITOMO ELECTRIC HARDMETAL CORP
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Patent Information

Application Number
JP2024013870D
Authority / Receiving Office
JP · JP
Patent Type
Designs
Current Assignee / Owner
Filing Date
2024-07-04
Publication Date
2025-05-20
Estimated Expiration
2049-07-04

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    Figure 0001798841000001
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    Figure 0001798841000003
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Abstract

The article according to this design is a drill, which is used to cut a workpiece and perform hole drilling without using cutting oil. The article according to this design has a hollow portion that penetrates from the front end on the cutting edge side to the rear end on the base side. The hollow portion has the function of releasing heat generated by the cutting edge during cutting.
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