1. quality: The housing of the mini pneumatic beveling machine handheld is made of plastic steel, which is effectively shockproof, dropproof, and corrosionresistant. The improved angle grinder features quality bearings and blades for smoother deburring and chamfering. 2. Adjustable speed and angle: Speed: 30,000 RPM; ARC correction: R0.1R1.5; chamfering power: C0.1C2. Adjustable depth: 0.1mm0.9mm; air consumption: 0.4/min. Equipped with a 15 air inlet setting, the chamfering machine allows adjustment of the air intake speed for use. The chamfer size can be easily adjusted and the blade replaced. 3. Easy to use: This 45degree mini pneumatic chamfering machine features a lightweight, compact design with smooth cuts, efficiency, low vibration, and carbon steel cutting performance. It can be comfortably operated with one hand for a better user experience. 4. Adjustable speed and angle: A portable pneumatic grinder for deburring, trimming, and chamfering. Features a thickened knob to adjust the 15 speed valve, allowing selection of the desired gear speed. The chamfer size is adjustable as needed. A safety switch prevents accidental activation, ensuring user protection at all times.