This pneumatic chamfering machine has a wide range of applications and can chamfer R/C angles, round holes, irregular edges, arcs and straight edges on a wide variety of materials such as steel, aluminium, copper, acrylic and wood. Mini deburring trimming chamfering tool features air grinder 1-5 block valve adjustment thickened knob, can adjust the gear speed freely. Chamfering size can be adjusted at will. Safety switch is used to prevent accidental touching and ensure safe use. This 45 degree pneumatic mini chamfering machine air tool is lightweight, small and delicate, easy to operate with one hand. You can easily adjust the chamfering size and change the blade by using the matching spanner. C angle blades are angled and are mainly used for metal chamfering, R angle blades are rounded and chamfered and are used in woodworking. Free Speed 30000 RPM, Air consumption 0.4/min, Air inlet port: 1/4 inch PT. Trimming Capacity: Chamfering: C0.1-C1.5, ARC corner:R0.1-R1.5, Adjustable depth:0.1mm-0.9mm. The pneumatic chamfering machine adopts a lightweight design and can be easily operated with one hand. The chamfering size can be adjusted freely. The speed of the gear can be freely adjusted and it is widely used for chamfering a wide range of materials such as metal and wood. Safe to Use: The safety switch prevents accidental contact and protects the user's safety at all times. Easy to Operate: This mini pneumatic chamfering machine is lightweight and easy to operate with one hand for quick deburring. Product name:Chamfer Tool Connector:4cm Chamfering hole diameter:greater than equal 8mm Colour:As Shown Material:metal Size:15x5.8cm, Disc:4.8cm, Body Diameter:3.2cm Package Contents: 4 x Black Pneumatic Chamfering Machine 8 x Bearing Fixing Screws 16 x Blade Fixing Screws