The Best Polisher just became Better! The Alpha® Air polisher set a standard as the pneumatic polisher with a center water feed many years ago and changed how stone fabricators polish the edges of hard surfaces.The polishers come with new splash guard which blocks the splash while providing better visibility. The end case was also re-designed to improve the water and air control operation and minimize the risk of breakage. In addition, we added a silicon boot for the gear head, and water quick coupler with shut off valve, for your comfort and convenience. Product Details Specification Data Model AIR-850 Air Pressure 85 PSI (6 Bar) Air Consumption 15 CFM (425L/min) No Load Speed 5,500 RPM Weight 2.75 lbs (1.2 kgs) Air Inlet 1/4” BSPP Water Inlet 1/8” BSPP Spindle 5/8”-11 / M14-2 Equipment Included Item Quantity Air Hose (15ft / 4.5m) 1 Water Hose (15ft / 4.5m) 1 Side Handle (reversible) 1 Rust Inhibitor Oil (6.7oz / 200ml) 1 Screw (w/ O-Ring Seal for Oil Port) 1 Exhaust Hose with Clamp 1 Spring Washer 1 Splash Guard 1 Double End Wrench (19mm / 22mm) 1 Phillips Screwdriver 1 Water Quick Coupler w/ Shut Off Valve 1 O-Ring (O-Ring for Water Valve Repair) 1 Manual