A worn out brush will usually be worn down near the wire guide and may be cracked, pitted, or burned. When changing carbon brushes, you'll want to also inspect your armature for burns, cracks, or other hurt which implies a larger motor problem. Interact the hammer working with an http://felixbjryg.arwebo.com/13609487/the-ultimate-guide-to-bosch-12-volt-cordless-drill-replacement-battery