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: 48VDC Power: 300 W Rotating speed: Maximum. 12000 RPM Torsion: 3Kg.cm Insulation resistance: >2M Dielectric strength: 400V Diameter: Approx. 52 mm / 2.05 inch Collet length: Approx. 45mm /1.77 inch Collet diameter: Approx. 16mm / 0.63 inch Motor length: Approx. 175mm / 6.80 inch Weight: 906g Package included: 1 x Spindle Motor Note: 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. 1100% Brand new and high quality 2It can be used for solid wood PCB carving drilling and so on 3Spindle radial run?out 0.01?0.04, high accuracy. 4High speed, the idling can reach 12,000 revolutions per minute 5Stable operation, convenient to replace the broken one