[Easy Operation]: This 45-degree mini chamfering machine air tools has a new lightweight design, small and exquisite,Use the matching wrench to easily adjust the chamfer size and replace the blade.Can be easily operated with one hand. [Adjustable Speed and Angle]: The portable deburring trimming chamfering tool air grinder 1-5 block valve adjustment thickened knob, freely adjust the gear speed you need. 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. [Stable Speed]: Pneumatic metal beveling tool can withstand high impact and high speed. The speed is increased and the chamfer is smoother, and the beveling machine is more durable. [Higher Efficiency]: The upgraded version of the pneumatic chamfer tool Type:A:Set A/B:Set B Colour:As Shown Material:Metal Package Contents: 1 x chamfering machine 8 x cutter heads (2 pre-installed) 5 x bearings 2 x wrenches 1 x American standard interface / 1 x chamfering machine 4 x cutter heads (2 pre-installed) 1 x bearings 2 x wrenches 1 x American standard interface Only 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.