Needle scaler also commonly known as a needle gun or pneumatic needle descaler . It’s a pneumatic tool that uses multiple hardened steel needles to strike and chip away rust, scale, paint, slag, and other contaminants from metal surfaces. Welcome to Premium parts & services, Our Truck & Trailers Spare Parts Store. Located in Dar es Salaam, Tanzania, we specialize in providing high-quality truck spare parts to meet all your needs. Our extensive inventory includes everything from engine components