Features:   Using A Sharp Tungsten Steel Double Cutter Head,The Cutting Force Is Strong,Sturdy,And Durable.   Double Head Design,It Can Adjust The Depth By Itself,Automatically Clamp The Fixed Screw Firmly And Not Easy To Fall Off.   The 1/4 Inch With Metal Filter Can Prevent The Burr And Foreign Matters From Entering The Air Inlet And Damaging The Machine.   Smooth Chamfering,No Ripple,No Noise,No Heating After Long-Term Use,Stable Operation And Long Service Life.   Equipped With An Air Intake Adjustment Switch,5-Speed Air Intake Adjustment,And Air Intake Size Can Be Adjusted At Will To Meet Your Different Work Needs.    Pressure Plate Type Safety Protection Switch Can Reduce Unnecessary Injuries.   Machine Has A Mini Body,Is Light And Convenient,Can Be Chamfered In The Narrowest And Shallowest Space And Operated With One Hand,Fast Cutting Right And Round Corners.    Blade Replacement:Use A Hexagon Wrench To Loosen The Plum Screw,Remove The Baffle Plate,Remove The Blade Screw With A Ring Wrench,Remove The Old Blade,And Replace It With A New One.  Specifications:   Material:Metal+Tungsten Steel   Color:Black+Silver   Size:120MMX65MM(4.72"X2.56")   Chamfer Angle:45°   Chamfering Ability:0.1-1.5MM   Adjustable Depth:0.1-0.9MM   Max Speed:30000RPM   Intake Pressure:90psi   Chamfer Aperture:>8MM   Chamfer Plate Thickness:>3MM   Counterbore Hole Depth:>5MM  Package Include:   1PCS X Pneumatic Chamfering Machine   2PCS X Wrench   2PCS X Triangle Cutter Heads