61 pcs electric grinder kit has a CE, GS electric grinder and various bits, wheels and stones. This grinder is smart and useful. 61 pcs electric grinder includes a CE, GS, ROHS, EMC certificated electric grinder and various diamond bits, grinder stone, steel brush, polishing wheel, sanding band, sand paper, cutter stone, copper collect and connective posts. 61 pcs electric grinder kit