GBM 13 (0601119103) Drill. GBM 13 (0601119132) Drill. GBM 13 (0601119150) Drill. 1507 (0601507134) 10 Gauge Shear. Carbon motor brushes are one of the most commonly replaced power tool components. A worn out brush will often be worn down near the wire lead and may be cracked, pitted, or burned.
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