Replace the carbon brush, check if your anchors is burning, this damage may not solve the engine problem If there when you encountered a new carbon brush, disappear naturally after grindings Carbon brushes can be used on various power tool and Motor, and the type of machines is very wide The mainly selected from carbon powder and Replacement of carbon brushes have the characteristics of wear, resistant Each carbon brush have artificially written without errors You can get 40 carbon brushes in 10 Size, each size contains 4pieces ( 7x17x19mm, 5x11x18mm, 6.5x7.5x13mm, 6.5x13.5x18mm, 6x10x17mm, 6x9x14 9mm, 7x11x18mm, 6x8x14mm, 5x8x13mm, 5mm) With storage box, the existence of storage box can make your storage easy, Manufacturer: Oxxggkao