... )Speed can be adjusted between 0-50000Rpm 2) Adjustable clockwise turn and version methods of work. Electric Micromotor Specification:Brushless,Max ... ,000rpm 1.speed 0~50,000rpm,can be adjusted to left and right. 2.three speed control system: knee control system,foot ... brushes, best bearing, longer life 6.orignal excellent handle, strong ,turn smooth Electric Micromotor