Air Do X is a complete package for Jewelry makers and designers. It is ideal for Stone Setting, Engraving, Drilling, Polishing, buffing, lapping, etc. thanks for 2 in 1 technology of engraver plus micro motor. The system comes with powerful engraving strokes that starts from 240 SPM and high precision micro motor speed up to 35000 RPM. The speed of the system can be controlled automatically by control knob or foot control. Precise Pneumatic system with Micromotor hand and Foot Control Ideal for setting engraving Drilling and Hammering Polishing and Buffing outlining and undercut inlay Lapping, stippling, and shading Dot Punch and background removal No External compressor is required Overload protection Digital LED display LED indicator for tool selection and speed control Length: 240 mm Width: 130 mm Height: 185 mm Weight: 5.0 Kg Brand- SmartPro Body Color- Gray Power input- 100-240 VAC 4.2 A 50/60 Hz Graver Speed- 0-60% Graver Strokes- 240 to 2400 Micro Motor speed- 35000 RPM Micro Motor Torque 2.8N.cm Packaging Box- 37(W) X 29 (L) 31.5 (H) Cm Gross Weight- 9 Kg Ventilation Requirements: Do not obstruct the ventilation holes