Granite Granite Countertop Tools and Machinery   MSI SM212 Pnuematic Stone Grinder The MSI SM212 Pnuematic Stone Grinder air polisher from MSI has a built in water regulator, an auto stop safety lever, a side exhaust and a 1 year warranty. It is excellent for polishing stone and can be used with diamond polishing pads up to 7" and with diamond cupwheels up to 5" diameter.  Click phot for more info. Wet Pnuematic Stone Grinder The MSI SM212 Pnuematic Stone Grinder air polisher from MSI has a built in water regulator, an auto stop safety lever, a side exhaust and a 1 year warranty. It is excellent for polishing stone and can be used with diamond polishing pads up to 7" and with diamond cupwheels up to 5" diameter. Features: Heavy duty construction Built-in regulator for positive speed control Rotating exhaust deflector No electric HAZARD! Center water feed Vibration reducing rubber sleeve Wet polishing eliminates DUST! Variable speed up to 5000 RPM Uses 12 CFM of air Durable and dependable Specifications: Speed (RPM): 7,000 Pad Size: 7" Spindle Thread: 5/8-11 Air Inlet (NPT): 3/8" Hose Size (ID): 3/8" Air Pressure (PSI): 90 Air Consumption (CFM): 19 Length: 15" Weight: 7 lb Georgia Granite Association Companies manufacture and supply granite countertop tools and large granite and stone working machinery and equipmnt for the granite and stone industry including granite countertop saws, large granite saws, diamond saws, rail saws, stone cutting tools, granite routers and profiling machines, diamond tools, and parts and accessories for the granite industry.