Boounyatin 100PCS 4 Inch Angle Grinder Sanding Discs Kit Best USA Tools S901807f8d7574bde8c7024db2ddc528by.jpg 2pcs 100mm Nylon Fiber Wheel Grinding Pad Angle Grinder NonWoven S9ae63fcc85c34c5f9dd2724856857ef60.jpg Factory High Efficiency Grinding Wheel 100*6.0*16mm 4 Inch Stainless. High tech ceramic fibre disc with significantly more self sharpening edges due its ultra fine grit and crystal structure and a corresponding material removal rate that greatly exceeds that of conventional fibre discs. Advantage over pyramid ceramics: Despite high performance, smoother surfaces and therefore less rework on the workpiece. In addition, drive motors are significantly protected. Features: Ultra fine grit and crystal structures provide for significantly more self sharpening edges and a huge improvement in material removal. The finer grinding results on the workpiece surface reduces the frequent necessity of reworking the piece with finer grits. Even in the coarse grain range and with high material removal, the chip particle size remains relatively small, whereby damage caused by long afterglow metal particles can be prevented The universal high performance fibre disc with an especially great cooling agent content is easy on any drive motor.