Makita® Carbon Brush Set is designed for drill/drivers, impact drivers, hybrid impact hammer driver drill, compact lithium-ion cordless impact driver, lithium-ion cordless impact wrenches, lithium-ion cordless hammer drill-drivers, lithium-ion cordless impact drivers, lithium-ion cordless 18 ga straight shear, lithium-ion cordless angle drills, lithium-ion cordless drywall screwdrivers, lithium-ion cordless autofeed screwdrivers, lithium-ion cordless driver-drill, angle drills, cordless impact drivers and hammer driver drills. 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.