Check the listing for details. Water Jet Pneumatic Grinder Marble Jade Stone Floor Air Polisher Sander Grinder. Condition: Brand New. Listed at 161.38 USD. Feature: 1. High-rigidity helical gears ensure longer tool life 2. Reasonable grip design to improve work comfort 3. The water spray nozzle can wet the cutting work surface, so that the dust particles are not lifted, away from the pneumoconiosis 4. The tool must be equipped with a sticky disk first, and then equipped with different numbers of diamond soft abrasive pieces (from coarse particles to fine particles) according to different requirements to avoid unnecessary repetitive work and achieve the best polishing and polishing effect. . 5. Widely used in polishing and polishing of marble, granite and other stone materials Specification: No-load speed: 4300 RPM Average air consumption: 6 CFM Polishing disc (cutting disc): 3"inch(76mm),4 " inch (98mm) Weight: 1.9KG Package include： 1 set of Pneumatic Grinder