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US 2017/0266734 A1Published application
Drilling tool
AssigneeKennametal Inc.
InventorMichael Schuffenhauer
Life of this patent
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Abstract
A drilling tool with: a shaft; a seat at one end of the shaft; a drill bit, which is arranged on the seat; and a clamping section, which is provided on the shaft and can interact with the drill bit. Also provided is a tensioning screw, which is screwed into the shaft and comprises an expanding section as well as a contact section. The expanding section interacts with the clamping section, and the contact section interacts with the drill bit.
Claims20
1-10. (canceled)
A drilling tool comprising:
- a shaft having a longitudinal axis;
- a seat disposed toward an axial end of the shaft;
- a drill bit accommodated at the seat;
- a clamping section, which is disposed on the shaft and interacts with the drill bit;
- and
- a tensioning element, which is disposed in the shaft and comprises an expanding section and a contact section;
- wherein the expanding section interacts with the clamping section, and the contact section interacts with the drill bit.
4 more elements
Dependencies are inferred from the claim text.