General description Metal shell, precise mold, solidly built. This 21V DC Mini Motor with 14 teeth and a speed of 28000 RPM is the best replacement for damaged or rusty motors in your power tools. It is suitable for electric chainsaws, reciprocating saws, rechargeable hand saws, and more. The motor features a pure copper coil for low current consumption and high efficiency, providing strong output power. It also has excellent heat dissipation performance with a fan cooling effect for stable operation. Technical specifications Voltage: 21V DC Speed: 28000 RPM Teeth: 14 Material: Metal Measurement allowed error: +/- 1-3 cm Installation Easy to use; the front can be fixed with 2 M3 screws. Other information Package Contents: 1 x Motor with ECS (other products not included). Note: Light reflection and different displays may cause the color of the item to differ slightly from the real thing.