1GOOD PERFORMANCE: This pneumatic chamfering machine adopts excellent accessories, which has high assembly accuracy, stable performance and long service life.2ADJUSTABLE AIR INTAKE: The no load speed is up to 30000rpm, and the 5 levels can be freely adjusted to the appropriate air intake speed, which can improve the life of the blades.3SAFE PARTS DESIGN: The pressure plate type protection switch can reduce unnecessary injuries, and the alloy steel baffle and safety belt buckle ensure safe use.4EASY OPERATION: 45 degree arc burr trimming machine, easy to use with single hand, fast cutting right and rounded corners, which is efficient and labor saving.5STANDARD INTERFACE: This mini pneumatic chamfering machine is equipped with a standard air inlet interface, which is easy to install and has low air consumption. 1 x Host 1 x User Manual 3 x Wrench 1 x Interface 2 x Screws 1 x Nut 3 x Bolts 1 x Bearing