1. Good quality and practical, a perfect set of tools for polishing and grinding.2. Small size, light weight, high speed, low noise level.3. Ergonomics design, compact and superior performance grinding and polishing tool, which not easily make people feel fatigue.4. This tool has the advantages of convenient use, small air consumption, simple operation and low cost.5. Applicable to all types of molds, hardware products, glass, stone, handicrafts, jewelry, circuit board manufacturing and other needs of cutting, grinding, finishing operations.Spec:Features:Good quality and practical, a perfect set of tools for polishing and grinding. Small size, light weight, high speed, low noise level. Ergonomics design, compact and superior performance grinding and polishing tool, which not easily make people feel fatigue.This tool has the advantages of convenient use, small air consumption, simple operation and low cost.High concentricity, high efficiency revolution, high quality, long service life.Applicable to all types of molds, hardware products, glass, stone, handicrafts, jewelry, circuit board manufacturing and other needs of cutting, grinding, finishing operations. Specification:Material: AluminumWeight: 1038g/36.6ozModel: AT-7033KWorking Pressure :90psi (6.2Bar)Chuck Size: 6mm & 3mmNo Load Speed: 18000-23000rpm(The lowest value marked on the product)Gas Consumption: 4 CFMInlet Port :1/4BSPPolishing Machine Length: 17cm/6.7inchPackage List:1 x Pneumatic Sander5 x Grinding Head (6mm rod diameter)5 x Grinding Head (3mm rod diameter)2 x Wrench1 x Inlet Connector1 x Chuck (3mm inner circle diameter)1 x Package BoxNote:1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different