Drebo Werkzeug Fabrik Gmbh

Alexis Ickert

Martin Stumpp

Alexander Zürn

Alexander Zuern

A drill head insert or drill head attachment, in particular a drill plate made of hard metal, for a rock drill, includes cutting edges () configured on the feed side which extend from a tip of the drill () rearward in a receding manner to an outer face () of the drill plate (). A drill plate () is substantially configured in the form of a roof when viewed from the side. A free face () at the cutting edge () abuts against a cutting face () along a substantial part of its extension between the tip of the drill () and the outer face (). A substantially smooth contour of the cutting edge () is interrupted by at least one projection () which projects beyond the cutting edge () in the feed direction.

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Aulendorf, Germany

Alexis Ickert