Designed for surface and edge grinding. The fiber backing strengthens the abrasive disc and improves stock removal. Each VICTOGRAIN abrasive grain triangle is firmly fixed on one of its sides to the backing material. Due to the slim design, VICTOGRAIN offers an extremely large chip space for maximum cutting efficiency. The structure of the triangular VICTOGRAIN is specially engineered to maximize results. The very fine crystalline structure ensures optimal wear characteristics as sharp cutting edges are always exposed, with the minimum amount of abrasive breaking off from the triangle. By combining all these properties together, users benefit from optimal, consistent performance, cool grinding and an extremely long service life with uniform workpiece surface roughness. The CDR clamping system has a threaded connection with male thread (plastic). Also compatible with the following commonly used systems: Roloc™, Lockit, Speed Lok TR, Power Lock Type III, Fastlock-System B, Roll-On.