Rotary cutting tool and tool unit
AssigneeKennametal Inc.
InventorJosef K. Herud
Life of this patent
Estimating the term…
Abstract
A rotary cutting tool, in particular a drill or milling cutter for heavy-duty cutting applications, is provided, said rotary cutting tool having at least one cutting edge and a shank having a free end. The shank has in its circumferential surface a groove for receiving a pull-out prevention element, wherein the groove extends axially and at the same time at least partially along the circumference of the shank and, starting at a distance from the free end of the shank, in the direction of the opposite free end. Also provided is a tool unit for a rotary cutting tool.
Claims12
A rotary cutting tool for heavy-duty cutting applications, comprising:
- at least one cutting edge and a shank having a free end;
- and
- said shank having in its circumferential surface a groove that extends helically around the shank for receiving a pull-out prevention element,
- wherein the groove extends axially and at the same time at least partially along the circumference of the shank and, starting at a distance from the free end of the shank, in the direction of the opposite free end,
- wherein the groove as a whole extends at most over half the circumference of the shank.
A rotary cutting tool, comprising:
- at least one cutting edge and a shank having a free end;
- and
- said shank having in its circumferential surface a groove that extends helically around the shank for receiving a pull-out prevention element,
- wherein the groove extends axially and at the same time at least partially along the circumference of the shank and, starting at a distance from the free end of the shank, in the direction of the opposite free end,
- wherein the groove extends only in an axial center of the shank,
- wherein the groove as a whole extends at most over half the circumference of the shank.
Dependencies are inferred from the claim text.