The motor is made of metal and is durable. With an operating voltage of 14.4V and a no-load speed of 19,000 rpm, it is powerful and robust. High-performance round shaft, high torque for DIY projects such as electrical/electronics, platforms, robots, remote-controlled vehicles, remote-controlled cars/robots; ordered and viewed replacement motors, etc. The 13-tooth motor is designed for power tools such as drill motors. The shaft shape is circular with a diameter of 9.5 mm. 13-tooth motor for Bosch GSR14.4-2-LI/PSR14.4LI-2. Replacement parts for old or defective drill motors. Package included: 1 x motor.