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 various materials such as steel, aluminum, copper, acrylic, and wood. The mini deburring trimming chamfering tool features an air grinder with 1-5 block valve adjustment and a thickened knob, allowing free adjustment of gear speed. Chamfering size can be adjusted easily. A safety switch is included to prevent accidental activation and ensure safe operation. This 45-degree pneumatic mini chamfering tool is compact and lightweight, designed for easy one-handed operation. The chamfering size and blade can be quickly adjusted using the included spanner. C angles are angled and primarily used for metal chamfering, while R angles are rounded and typically used in woodworking. Free speed: 30,000 RPM. Air consumption: 0.4 m³/min. Air inlet port: 1/4 inch PT. Trimming capacity: Chamfering: C0.1–C1.5, ARC corner: R0.1–R1.5. Adjustable depth: 0.1 mm–0.9 mm. The machine features a new ergonomic design for easy one-handed operation. Gear speed and chamfering depth are fully adjustable, making it suitable for chamfering a wide range of materials including metal and wood. Safety switch prevents accidental contact, enhancing user safety. Easy to operate with one hand for fast and efficient deburring. Product name: Chamfer Tool. Connector: 4 cm. Chamfering hole diameter: 8 mm. Color: As shown. Material: Metal. Dimensions: 15 x 5.8 cm. Disc diameter: 4.8 cm. Body diameter: 3.2 cm. Package contents: 1 x Black Pneumatic Chamfering Machine, 2 x Bearing Fixing Screws, 4 x Blade Fixing Screws, 6 x C Angle Blades, 6 x R1.5 Blades, 6 x Bearings, 1 x Connector, 2 x Spanner, 2 x Sealing Rings.