Feature: Brand new and high quality Its working voltage is 12-24V, and the starting current is more than 10A, so it must use enough power to make it rotate. Only when the 24V voltage is connect, the speed can reach the maximum12000rpm. It is double ball bearing.It supports high-speed and high-torque motor and is a hair dryer power tool. High speed,high torque, built-in radiator, low noise. Strong metal material ensures strength and durability for long lasting usage. Specification: Material:Alloy Type:775/795/895 Noload current:1.1a-1.5a Noload speed: 6000rpm 12v 12000rpm 24v Torque:4.2kgcm 12v;8kgcm 24v. Work temperature:-20℃-85℃ work humidity:10%-85%rh Size:Approx.98x5x42mm/3.85x0.19x1.65inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Electric Motor