3M™ Standard Abrasives™ Quick Change TS Surface Conditioning RC Disc 840335 is the best material for flat surface finishing; most efficient on ferrous metals where the final finish is important. It provides a more compact structure of non-woven fibers than 3M™ Standard Abrasives™ Buff and Blend Products. It has a woven fabric (scrim) embedded in the nylon structure to provide additional strength and durability for edge work, deburring and efficient blending of all metal types. The Quick Change TS System is the most popular style for safety, productivity and fast disc changes. Change discs by simply twisting to unlock the disc from the holder pad. 3M™ Standard Abrasives™ Quick Change TS Surface Conditioning RC Disc 840335 is the best material for flat surface finishing; most efficient on ferrous metals where the final finish is important. It provides a more compact structure of non-woven fibers than 3M™ Standard Abrasives™ Buff and Blend Products. It has a woven fabric (scrim) embedded in the nylon structure to provide additional strength and durability for edge work, deburring and efficient blending of all metal types. The Quick Change TS System is the most popular style for safety, productivity and fast disc changes. Change discs by simply twisting to unlock the disc from the holder pad.