Fangrui Product Details [Easy to operate]: This 45 degree mini pneumatic chamfering tool has a new design, which is small and delicate, and can be easily operated with one hand. Use the matching wrench to easily adjust the chamfer size and replace the blade. [Adjustable speed and angle]: portable deburring and trimming air chamfering tool air grinder 1-5 valve adjustment thickening knob can freely adjust the required gear speed. The chamfer size can be adjusted at . The safety switch is used to prevent accidental touch to protect the users safety at all times. 1/4 inch metal filter, free speed: 30000 RPM, air consumption: 0.4/min. [Higher cutting efficiency]: The pneumatic chamfering tool chamfering machine is newly designed with a new chrome plated all aluminum housing and high-quality bearings, and is equipped with high-precision heat treatment blades for better use and smoother deburring and chamfering. [Purpose]: The Companys portable air chamfering tool air chamfering tool grinder adopts the thinnest nut lock bearing at pr