Extremely well suited to fine and very fine grinding, and for step-by-step preparations for polishing. The self-sharpening compact grain facilitates a very long service life and achieves consistent surface quality levels throughout the entire service life. The CD clamping system has a threaded connection with female thread (metal/plastic). Also compatible with the following commonly used systems: PSG, Power Lock Type II "turn on", SocAtt, Turn-On.