Features:100% Brand new and high quality.It can be used for solid wood PCB carving drilling and so on.Spindle radial run-out 0.01-0.04, high accuracy.High speed, the idling can reach 12,000 revolutions per minute.Stable operation, convenient to replace the broken one.Specifications:Working voltage: 48VDCPower: 300 WRotating speed: Maximum. 12000 RPMTorsion: 3Kg.cmInsulation resistance: >2MΩDielectric strength: 400VDiameter: Approx. 52 mm / 2.05 inchCollet length: Approx. 45mm /1.77 inchCollet diameter: Approx. 16mm / 0.63 inchMotor length: Approx. 175mm / 6.80 inchWeight: 906gPackage included:1 x Spindle MotorNote:Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering.