Speed Regulator, Series Not Applicable, Compatible with Grainger Part Number 11X731, 13F671, 13F672, 13F680, 13F681, 13F682, 13F683, 25H810, 25H812, 25H867, 25H868, 25H869, 25H870, 25H871, 25H872, 25H873, 25H874, 25H875, 25H891, 25H901, 25H902, 25H904, 25H942, 25H943, 25H944, 25H945, Product Type Speed Regulator, Compatible with Manufacturer Part Number 11000, 11001, 11003, Compatible with Series Dynafile, Dynalocke, Compatible with Brand Dynabrade