Features Good polishing effect, easy to deal with various rough surface. Adjustable speed, low vibration, easy to use. Rotary speed reaches up to 12000rpm, easily meeting various polishing needs and improving efficiency. Fast grinding speed, low air consumption and low noise. Widely used for artificial stone, furniture, wood products, metals, automobiles grinding and polishing, etc. Features: Good polishing effect, easy to deal with various rough surface. Adjustable speed, low vibration, easy to use. Rotary speed reaches up to 12000rpm, easily meeting various polishing needs and improving efficiency. Fast grinding speed, low air consumption and low noise. Widely used for artificial stone, furniture, wood products, metals, automobiles grinding and polishing, etc. Specification: Material: Metal Weight: Approx. 880g/31oz Speed: 12000rpm Pneumatic: 90psi Inlet Port: 1/4" Gas Consumption: 0.34m³/min Polishing Disc: 75*100mm; 90* 130mm (Optional) Deflection Diameter: 2.5mm Speed Regulation: with speed regulation valve Pneumatic Sanding Machine Size: 210*95mm/8.3*3.7inch Package List: 1* Pneumatic Sanding Tool Package List