Specifications: Comes with 14 teeth 9.5mm gear diameters. It operates at an 21V voltage level with a high-speed performance Material & Build: Crafted from sturdy stainless steel, ensuring durability. Features a high-grade pure copper coil for efficient and powerful output. Designed with excellent heat dissipation capabilities, it includes an effective cooling fan for stable performance. Easy Installation: The motor is easy to install with a front-mounted, simplifying the installation process in electric tools. Compatibility: Perfectly suited for such as electric chainsaws, reciprocating saws, cordless saws, and other rechargeable handheld tools Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour:As Shown Material:Aluminum alloy Package Contents: 1x RS550 DC 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.