Patent ID: 8740517

Claim:
A production method for a tool bit consisting of sintered material, comprising the following steps performed in the stated sequence: a blank having a longitudinal axis is produced from the material to be sintered; at least one swarf chamber spaced from the longitudinal axis and extending along the longitudinal axis is formed into the blank; the tool bit is produced by sintering the blank; and at least one cutting edge adjoining the swarf chamber is formed in the tool bit by grinding and the tool bit is further processed by grinding, wherein, however, the swarf chamber is ground exclusively in a region adjoining at least one of the cutting edges and otherwise remains unground, and wherein at least one of the cutting edges extends at an end face of the tool bit and that the swarf chamber, insofar as it adjoins this cutting edge is ground over a length, as seen in the direction of the longitudinal axis, lying between half and twice the diameter of the tool bit.