United States
US 12,703,029 B2
Indexable drilling tool
US 12,703,029 B2 is a granted patent from the United States Patent and Trademark Office (USPTO), dated 2026-08-11. Applicant: ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO., LTD. Its PDF downloads from this page without an account, up to 5 a day.
- Applicant
- ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO., LTD.
- Inventors
- Aisheng JIANG; Xun LI; Aimin TANG; Junbo XUE
- Publication date
- 2026-08-11
- Filing date
- 2021-02-08
- Document type
- B2 Granted patent
- Also written as
- US 12,703,029 B2 · US12703029 · 12703029
Abstract
An indexable drilling tool includes a cutter body, an outer blade and an inner blade. The inner blade is surrounded by a first upper surface, a first lower surface and a first side surface. The first upper surface intersects with the first side surface to form multiple identical inner cutting edges. When drilling, a cutting area of the inner cutting edge as a main cutting edge is located between a central inner point and a central outer point on the inner cutting edge.…
The opening of the abstract. The full text is in the PDF.
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Patent office website: United States Patent and Trademark Office (USPTO)
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