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 . 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. 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. Construction: Built with quality materials, the motor is designed to withstand rigorous use, offering a long service life and consistent performance. Colour:As Shown Material:Metal + Plastic Package Contents: 1 * chainsaw motor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.