[Easy to operate]: This 45 degree mini pneumatic chamfering tool has a lightweight 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 will. The safety switch is used to prevent accidental touch to protect the user's 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 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 Company's portable air chamfering tool air chamfering tool grinder adopts the thinnest nut lock bearing at present, which can chamfer in the narrowest and shallowest space, and is suitable for various angles, such as straight edge chamfering, internal and external circular hole chamfering and irregular chamfering. Angle, keyway polygon chamfer. Deburring tool for metal trimming and round R side Colour:silver Material:Metal Package Contents: 2 x 45-degree mini chamfering machine Kit 16 x blades 4 x Bearing