CoolSpeed CM-AV-R016-040- Fluid & Air-Mist High-Speed Spindles; Drive Type: Air-Mist; RPM: 55000.000; Compatible Tool Size: 3mm; 4mm; 6mm; Shaft Diameter: 16.000; Wattage: 200.000; Operating Pressure Range (psi): 44-101; Application: CoolSpeed High-S