Makita® Carbon Brush Set is designed for NHP1310, 6302H, 6303, 6302, 6303H, HP1310, 8401 drills, 6820V screwdriver, 6904VH impact wrench, 6905H impact driver, HP1030 hammer drill, 6403 electric drill and 6402 3/8" electric 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.