Yosoo 57oz-in 1Nm Nema 17 Stepper Motor 1.3A 40mm for CNC Router or Mill It has better position accuracy and repeatability of motion, and has excellent response of starting and stopping Motor rotation angle is proportional to the number of pulses, so it has a wide range of speed The motor has the maximum torque when it stops rotating, simply connecting the load directly to the shaft of the motor can also rotate extremely slowly Brushless, with high reliability, so the life of the motor only depends on the life of bearing Please note that the motor needs to be used with driver