This pneumatic 45 degree mini chamfering machine is a compact, lightweight tool designed for one‑hand operation. It can chamfer radii (R/C), round holes, irregular edges, and straight edges on a range of materials including steel, aluminium, copper, and acrylic. Blade options - C-angle blades: angled and mainly used for chamfering metal. - R-angle blades: rounded and chamfered, used in woodworking. Key features - Lightweight, small, and easy to control with one hand. - Includes a matching wrench to easily adjust the chamfer size and swap blades. - Thickened adjustment knob for the air grinder 1-5 block valve enables自由 speed and chamfer size adjustment as needed. - Safety switch prevents accidental contact, promoting safe operation. Use scenarios - Bevel and deburr metal edges on steel, aluminium, or copper workpieces. - Chamfer edges and holes on metal components or acrylic panels. - Woodworking tasks using R-angle blades for rounded chamfers and smooth edges. This tool maintains the original model’s intent and capabilities, offering versatile chamfering across metal and wood with straightforward adjustments and safety features.