Air File Air Saw Dual-purpose Pneumatic File Reciprocating Saw Gas Cutting Polishing Machine Cutting Grinder ,Versatile

File chuck. Dual-purpose chucks, files and saw blades with 3mm shank diameter can be used. Push-type switch, comfortable hand feeling, simple and convenient operation. Anti-seize protection device, fixed round trip, anti-seize phenomenon. Exhaust rubber-coated muffler pipe with muffler cotton inside to reduce noise. Air inlet speed control knob. Use the batch head to adjust the air intake to meet different work needs.