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. The mini deburring tool features a 1-5 block valve adjustment with a thickened knob for free gear speed adjustment. The chamfering size is adjustable and a safety switch prevents accidental contact. This 45-degree pneumatic tool is compact and easy to operate with one hand. The chamfering size can be adjusted and the blade changed using the included spanner. C angles are angled and used for metal chamfering, while R angles are rounded and used in woodworking. Specifications: 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. Product Name: Chamfer Tool Connector: 4cm Chamfering Hole Diameter: 8mm Material: Metal Size: 15x5.8cm, Disc: 4.8cm, Body Diameter: 3.2cm Package Contents: 1 x Black Pneumatic Chamfering Machine 2 x Bearing Fixing Screws 4 x Blade Fixing Screws 6 x C Angle 6 x R1.5 6 x Bearing 1 x Connector 2 x Spanner 2 x Sealing Ring