The invention concerns a knife holder block (100) for a knife rebar system (500) for a majority of knives (10),with a base body (110),which is intended for mounting on a mounting surface (120) on a substrate. The base body (110) has a handle sheet (130) for recording knife grips (12) and a height-adjusted cutting sheet (140) for the handle sheet (130), where a knife (10) is used as intended with an area of its grip (12) on the handle (130) of a first base body (110) and with an area (16) of its cut (14) on the cutting bed (140) one follows in the direction of the cross-section (y)other basic bodies (110). The cutting layer (140) is positioned in the direction of a cross section (y) adjacent cutting chamber (150). The cutting room (150) is closed with a cover (152) to the handlebars (130) at least in a rangeso that a knife cut (14) of a knife placed in the cutting room (150) is covered by the cover (152).
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