FEATURES:{High-quality material} Made of high-quality whitewool.The wool is fine and pure white, not easy to shed, and wear-resistant. The polishing effect and service life are much higher than ordinary wool wheels.{Size}Diameter :3.86'' (98mm);Bore Diameter :16mm(for electric grinders and pneumatic grinders);Thickness:8mm.{Widely Usage}Widely used for fine polishing of stainless steel, copper, aluminum, glass, ceramics, wood, marble and other workpieces. When working, use it with a polishing paste suitable for the workpiece, and the polishing effect will be more significant.{Note}Applicable machine: Model 100 angle grinder, polishing machine.The installation hole diameter must be the same as the hole diameter of the wool wheel. You need to wear protective glasses and protective gloves while working.Specifications:Diameter :100 mmBore Diameter :16 mm(for 100 angle grinder used)Thickness:8mmPackage Included:10pcs wool wheel