| 摘要 |
The invention relates to a blade holder for sharpening and fining down a substrate, having a handle, a recess with a recess chamber (5) for a blade (2), wherein the blade has a larger blade side surface (11) and, behind with respect to the cutting direction, a narrow side (12) with a cutting edge (8), and having a positioning aide for positioning the blade holder on the substrate, wherein the positioning aide has a distancing device (7) by means of which the blade (8) can be arranged in a distanced position in the recess in such a manner that the blade can be positioned with the cutting edge thereof distanced from the substrate for the processing of the substrate. In addition, the invention relates to a method and a blade for the blade holder. A specific advantage is a relief (23) produced by grinding in the cutting direction (s) in front of the cutting edge (8) in the blade side surface facing the substrate when the blade is in the operational position. The relief is arranged in a cutting order behind the cutting edge. The relief is introduced into a recess in the blade side surface, thereby reducing the friction of the blade on the substrate and thus the force required for displacing the grooving cutter across the substrate. It furthermore enables the blade to "stick" to the substrate when a smooth substrate is treated. |
