Function: 1. GOOD PERFORMANCE: This pneumatic chamfering machine adopts excellent accessories, which have high assembly accuracy, stable performance and long service life. 2. ADJUSTABLE AIR INTAKE: The no-load speed is up to 30000 rpm. /min, and 5 levels can be adjusted freely to get the right air intake speed, which can improve the life of the blades. 3. SAFE PART DESIGN: The pressure plate type protective switch can reduce unnecessary injury, while the alloy steel partition and seat belt buckle ensure safe use. 4. EASY OPERATION: 45 degree arc trimming machine, easy to use with one hand, fast cutting right and rounded corners, which is efficient and labor saving. 5. STANDARD INTERFACE: This mini pneumatic chamfering machine is equipped with a standard air intake interface, which is easy to install and has low air consumption. Specification: Item Type: Pneumatic Phase Material: stal tungsten, aluminum alloy Bevel Angle: R0-R1 Adjustable depth: 0,1-0,9 mm No-load speed: 30000 rpm /min Air consumption: 0,15m³/min How to use: Use a hex key to loosen the star screw, remove the cover, use the star wrench to unscrew the blade screw, remove the old blade and replace it with a new one. List of packages: 1 x Host 1 x User Manual 3 keys 1 x Interface 2 screws 1 x Nut 3 screws 1 x Bearing Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.