Features: 1. This professional air grinding machine can meet most grinding and polishing needs. 2. It has the characteristics of high rotation speed, low noise, low air consumption, and high accuracy of rotary movement. 3. Ergonomic design, comfortable handle, suitable for manual operation. 4. Easy to operate, high efficiency, long service life. 5. Widely used for grinding and trimming various dies, metal products, glass, stone, handicrafts, jewelry, circuit board and more. Specification: Model: AG-315 Item Type: 90 Degree Air Grinder Working Air Pressure: 90psi (6.2 bar) Handle Size: 3.15mm or 6.35mm (1/8" or 1/4") No Loading Speed: 2000rpm Air Consumption: 4cfm Air Inlet Connector: 1/4BSP Total Length: 16cm / 6.3in Weight: Approx. 623g / 22.0oz Package List: 1 * Air Grinder 2 * Wrench 1*1/4BSP Air Inlet Connector Handle 1*3.15mm (Inner Diameter 3.15mm) Note: 1. Due to the difference between monitors and lighting effects, the pictures may not reflect the actual color of the item. 2. Please allow slight error due to manual measurement. Thank you for your understanding.