Function: 100% Brand New and High Quality. Can be used for solid wood PCB carving drilling, etc. Spindle Radial Oscillation 0.01-0.03, High Precision At high speed, idle can reach 12,000 rpm Convenient DIY engraving accessory to replace broken items Specifications: Operating Voltage: 100VDC Power: 500W Rotation Speed: Max. 12000 RPM Torque: 0.5N.cm Insulation Resistance: >2MΩ Dielectric Strength: 400V Diameter: 52mm /2.05" Collet Length: 45mm / 1.77" Collet Diameter: 16mm /0.63" Motor Length: 200mm /7.87" Weight: 1079g Package included: 1x Spindle Motor