General description The 3X Manual Pneumatic Chamfering Machine is an upgraded tool designed for efficient metal cutting and deburring. It features a robust shell, high-quality bearings, and precision heat-treated tungsten steel blades, ensuring durability and high cutting efficiency. The machine allows for adjustable chamfer sizes from 0.1mm to 1.5mm and includes a thickened 5-speed air valve adjustment knob for customizable speed control. Technical specifications Free speed: 30,000 / min Air consumption: 0.4 / min Chamfer size adjustment: 0.1mm to 1.5mm Material: Metal Color: Silver Package contents: 3 Manual Pneumatic Milling Machines, 6 Tungsten Steel Blades, 12 Bearings, 6 Wrenches, 3 1/4 Inch Interfaces Measurement allowed error: +/- 1-3 cm Compatibility and accessories Suitable for various irregular chamfers including straight edge, round hole inner and outer, irregular, and polygonal keyway chamfering. Includes accessories such as tungsten steel blades, bearings, and wrenches