... 2.long use life,safety HITCACHI carbon brush,HITACHI 99-006 ,carbon brush for power tools,power tools carbon brush,carbon ... : Unit must be in good condition, with less than .002" out-of-roundness. Bar edge must be chamfered and there should ... give the size of opening. HITCACHI carbon brush,HITACHI 99-006,carbon brush for power tools,power tools carbon brush,carbon ...