3M 4 HARD 5/8 11FEM051144-83489
Features: Designed to support 3M(TM) Roloc(TM) 4 inch diameter abrasive discs | Thread allows it to be mounted directly to tools with 5/8-11 EXT threaded shafts | Large hex nut (11/16 inch hex)
Standard Pack: 1 EA
Country Of Origin: US