Product Description AIR NEEDLE SCALER Heavy duty metal construction for durability. Compact & lightweight design. Ergonomic design Specifications Blows Per Minute: 2,800 BPM Stroke Length: 24mm Needle Quantity: 12 Needle Size: 125mm x 3.0mm Average Air Consumption: 57 L/min Length: 315mm Air Inlet: 1/4″ Weight: 1.1kg