... carbon brush,HITACHI 99-008,carbon brush for power tools. 1.small spark,low noise 2.long use life,safety ... at equal distance around the commutator. For a 4 pole machine, the spacing will be every 90 degrees. ... side of the brush to the center of the terminal hole.The dimensions of "d" on the double ... size of opening. HITCACHI carbon brush,HITACHI 99-008,carbon brush for power tools,power tools carbon brush ...