chisel door and basic part for receiving a chisel door. The present invention relates to a chisel holder with a socket and a support piece with a chisel receiver, wherein the socket has a duct cut and the support piece a support section. In order that a basic part can support a durable and stable chisel door, according to the invention it is provided that the support section and / or the bearing section have respectively two support surfaces or bearing surfaces, disposed at an angle to one another. the other is that the axis of the median longitudinal axis of the chisel receiver and the longitudinal axis of the socket form an acute angle.
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