Patent ID: 9376911
Filing Date: 2016-06-28
CPC Classification: E21C

Claim Text:
1. A chisel holder system, comprising: a chisel holder, comprising: a body region having a chisel-receiving opening which is open at least toward a chisel insertion side of the body region; a fastening shank which extends from a supporting side of the body region and which has a shank longitudinal axis (L wherein the body region has, on its supporting side, a first supporting surface region, and wherein; the chisel holder system further comprising: a base part having a first counterpart supporting surface region for supporting the first supporting surface region; and a second counterpart supporting surface region, which is angled relative to the first counterpart supporting surface region, for supporting the second supporting surface region, wherein the first counterpart supporting surface region comprises a first counterpart supporting surface for supporting the first supporting surface or the first supporting surface region and a second counterpart supporting surface, which is angled relative to the first counterpart supporting surface, for supporting the second supporting surface of the first supporting surface region.