Features 1、DIFFERENT MATERIALS: 100 pieces polishing bits are made of different materials, wool, rubber, sesame, cowhide and abrasive stone, each has own applicable objects 2、ROUGH AND MIRROR FINISH: Different materials of abrasive polishing tips have different grit from rough finish to mirror finish, which can meet your different polished need 3、WIDELY USAGE: Rotary polishing bits are suitable for polishing metal, aluminum, various molds, glass, medical equipment, gold, silver and jewelry 4、EASY TO USE: Specific 3mm shank fit electric rotary tool, bench grinder, hand drill and pneumatic power tools, provide great convenience for your work 5、PACKAGE INCLUDES: Abrasive polishing tips buffing kits include 100 pieces 3mm shank rotary polishing sets, and a storage box for easy storage, portability and access, also prevent damage and loss Specification Item Type: Rotary Polishing Bits Material: Wool, sesame, rubber, cowhide, abrasive stone Package List 100 x Rotary Polishing Bits 1 x Storage Box