The invention relates to a knife assembly, particularly for a coal planer or the like, wherein the knife (2) are clamped in the blade holder (1) by a curved corner (16). According to the invention, the outer regions (18, 19) of the curved wedge (16) apply as well against the transverse wall (8) of the knife holder (1) against which the end face (15) of the knife (2), while the central region (20) of the corner of curved shape (16) is slightly spaced from the transverse wall (8) of the knife holder (1) and / or the end face (15) of the knife ( 2). Thus, a three-point clamping of the knife into the knife holder.
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