This air needle scaler delivers up to 4000 blows per minute (BPM) under 90 PSI, offering powerful impact force for effectively removing rust, paint, , and dirt from hard metal surfaces. Perfect for automotive, shipbuilding, and industrial applications. Constructed with high-strength carbon steel, this needle scaler air tool is designed for long-term durability in tough working environments. Its rugged design makes it ideal for continuous use in heavy-duty preparation tasks. Equipped with 12 wear- steel needles (3mm diameter, 180mm length), this air needle scaler provides deep and even cleaning on irregular or curved surfaces, making it suitable for aircraft paint remover tasks and stubborn coatings. -trigger start system allows quick activation without complicated setup. It also features a safety lock to prevent accidental starts, giving users precise control and enhanced safety during operation. Includes a rear exhaust system that directs from the user, reducing dust exposure. The built-in stainless steel filter protects internal components from debris, and the needle set is easily adjustable without special tools. Color:As Shown Material:Carbon Steel Package Contents: 1 * needle scaler kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.