Kennametal Inc.

Bayerische Motoren Werke Aktiengesellschaft

Wolfgang Lang

Michael Hacker

Xaver Spichtinger

Heinrich Manner

Armin Zimmermann

Sebastian Kunschir

Michaela Götz

Günter Schreiner

A reamer has a basic tool body made of hard metal () and a plate-like cutting insert () inserted into a recess () at the front. The cutting insert () is at least partially made of polycrystalline diamond, its cutting edges () situated axially offset relative to the cutting edges () on the basic tool body (), thus engaging with the workpiece later.

Reamer

Twist drill with a drill shaft and a cutting part that extends to a drill tip, with spiral chip flutes along the cutting part that form a drill core, wherein the drill diameter and/or core thickness diminish or taper from the drill tip toward the shaft. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. &#xa7;1.72(b). As stated in 37 C.F.R. &#xa7;1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading 'Abstract of the Disclosure.' The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Twist drill

Growing community of inventors

Wernberg-Köblitz, Germany

Wolfgang Lang