[NEW VERSION]The upgraded version of the pneumatic chamfering machine, the new design adopts a new shell with bearings, equipped with high-precision heat-treated tungsten steel blades, sturdy and durable, 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 will 360-degree rotating exhaust port, good heat dissipation, high work efficiency safety switch It is used to prevent accidental touch and protect safety at all .[STABLE PERFORMANCE]Free speed can reach 30000RPM, air consumption is 0.4 or min. Can withstand high impact and high speed, high concentricity, low vibration, low loss, and more durable the speed is improved, and the chamfer is smoother.[MULTI-USE]Using the thinnest outer 1mm hexagon nut to lock the , 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.Material:Metalcolour:silverPackage Contents:1 x manual pneumatic trimming machine2 x tungsten steel blades4 x bearings2 x small wrenches1 x 1 or 4 inch interfaceOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.