Usage Tips:1. PROFESSIONAL REPLACEMENT SET: This quality stator, rotor, and carbon brush set is specifically designed for HR4001C, HR4010C, HR4011C, HR4003C, HR4013C, and HR4001CX models, providing a precise fit and performance for your power tool.2. COMPONENTS: Includes 1 metal stator (6257586), 1 rotor (5138884), and 2 carbon brushes (CB350/1941609), all manufactured with quality materials to extend the life of your power tool and maintain consistent operation.3. EXACT SPECIFICATIONS: Each carbon brush measures 6.5x11x25mm, offering the replacement for wornout parts. These components are engineered to meet equipment standards for reliable functionality.4. INSTALLATION: This complete 4piece set contains everything needed for a comprehensive , enabling straightforward replacement of worn components without the need for additional parts or.