For general coarse grinding work with high stock removal rates. Ideal for dressing weld seams in hard-to-reach places. Longer tool life and higher stock removal rate when compared to abrasive discs. The CDR clamping system has a threaded connection with male thread (plastic) on the tool side. Also suitable for the following commonly used systems Roloc, Lockit, Speed Lok TR, Power Lock Type III, Fastlock-System B, Roll-On.