Optimized Performance: This 21V RS550 DC motor is specifically designed for reciprocating electric saws, featuring 8 teeth and a helical gear for enhanced efficiency and . Versatile Compatibility: Perfectly compatible with a wide range of electric saw models, this motor is a reliable replacement or upgrade, ensuring your tools are for action. High Power Output: Engineered to deliver robust performance, this motor ensures your electric saw operates at optimal levels, making it ideal for both professional and DIY projects. Construction: Built with quality materials, the motor is designed to withstand rigorous use, offering a long service life and consistent performance., Weight: 1.6865363043 pounds, Manufacturer: Kueohse