The 12R4 grinding wheel is designed for sharpening circular saws with a brazed joint, etc.

- works in productive modes (the joint cuts, the body holds the load);
- edge-resistant, high profile stability;
- ensures high surface cleanliness, no chips;
- no scorching on the teeth/blades;
- long service life (low cost of a sharpened tooth);
- desired workpiece surface cleanliness, no chips;
- neutral reaction to coolant (no smoke, steam), SOMETIMES "dry" operation;