Makita® Carbon Brush Set is designed for GA5000 5" disc grinder, 9207SPC polisher, 4014NV blower, 4200H circular saw, 9005BZ, 9005B grinder, 6906 impact wrench, 9045N, 9045B finishing sander, 9207SPB sander, 9217SPC sander/polisher, 9741 wheel sander, 9900B, 9901, 9924DB, 9924B belt sanders, JN3200 nibbler, JS3200 metal shear, PC1100 concrete planer, 2106 band saw, DA6300 angle drill, 9218SB sander, 9218PB, 9218PBL polisher, 5005BA circular saw, 1100 3 1/4" power planer, DA6301 1/2" angle drill. Carbon brush set contains brushes with wire lead, spring attached and helps to fix an intermittent motor. It is used for reducing electric braking and motor power. It includes worn brushes that can be worn down near the wire lead and may be cracked, pitted or burned.