The Fein 53277003360 Armature is a genuine 110V replacement motor component for selected FEIN compact angle grinders, belt sanders, angle polishers and mitre grinders, including the WSG10, RS10, BF10, WPO10 and KS10 ranges. This armature is used across the compatible 110V machines listed below, with equivalent 120V regional versions also using the same component. Because an armature is voltage-specific, always match the exact FEIN part number, complete machine number and voltage before ordering. Parts data confirms 53277003360 as the armature used within compatible WSG10, RS10, BF10 and KS10 machines.