This pneumatic chamfering machine offers a wide range of applications, capable of chamfering R and C angles, round holes, irregular edges, arcs, and straight edges on various materials including steel, aluminum, copper, acrylic, and wood. The mini deburring and trimming tool features an air grinder with a 1-5 block valve adjustment and a thickened knob for free gear speed control. The chamfering size is fully adjustable. A safety switch is included to prevent accidental activation and ensure safe operation. This 45-degree pneumatic mini chamfering tool is lightweight, compact, and designed for easy one-handed operation. Chamfering size and blade changes 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 applications. Specifications: 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 to 0.9 mm. The tool features a new lightweight design for comfortable, one-handed use. Gear speed and chamfering size are freely adjustable, making it suitable for chamfering a variety of materials such as metal and wood. Safety: Integrated safety switch prevents accidental contact for continuous user protection. Ease of Use: Lightweight construction allows for easy handling and quick deburring with one hand. Product Name: Chamfer Tool Connector: 4 cm Chamfering hole diameter: ≥8 mm Color: As shown Material: Metal Dimensions: 15 x 5.8 cm, Disc: 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 Spanners 2 x Sealing Rings