[STABLE PERFORMANCE]Free speed can reach 30000RPM, air consumption is 0.4/min. Can withstand high impact and high speed, high concentricity, low vibration, low loss, and more ; the speed is improved, and the chamfer is smoother. [NEW VERSION]The upgraded version of the pneumatic chamfering machine, the new design adopts a new with high-quality bearings, equipped with high- heat-treated steel blades, sturdy and , high cutting efficiency, and long service life. [CLEVER DESIGN]5-speed air valve adjustment thickened knob, freely adjust the required gear speed; 0.1mm-1.5mm chamfer size can be adjusted at ; 360-degree rotating exhaust port, good heat dissipation, high work efficiency; switch It is accidental touch and protect user at all times. [MULTI-USE]Using the thinnest outer 1mm hexagon nut to lock the bearing, it can be chamfered in the narrowest and shallowest space. Suitable for various irregular chamfers, such as straight edge chamfering, inner and outer round hole chamfering, irregular chamfering, and keyway polygon chamfering. Used for metal trimming and rounded R side., Weight: 1.08577664035 pounds, Manufacturer: Hopbucan