Abstract: A guide for a grinding device, the grinding device being provided with a grinding tool having a width and a relative travelling direction crosswise to relative advancing movement with respect to the grinding tool of a workpiece to be ground by the grinding tool, the workpiece having a length to be worked that exceeds the width of the grinding tool, the grinding tool having a point of contact at an angle of contact with the workpiece, with the point of contact and angle of contact between the workpiece and grinding tool being adjustable. A setting portion is provided having a distance adjustable with respect to the grinding tool, the setting portion being adjustably rotatable about a first axis, the first axis being fixed relative to the grinding tool. The setting portion is provided with an adjusting device disposed adjacent the grinding tool, the adjusting device having a body portion, at least one support being provided on the body portion for biasing against an edge of the workpiece.