Sealey SA52 Air Needle Scaler/Flux Chipper 32mm Stroke Straight type air hammer supplied with interchangeable needle and chisel heads. Suitable for cleaning heavy paint and rust scale from metal surfaces. Palm control trigger mechanism. Replacement needle set and chisel available. Straight type air hammer supplied with interchangeable needle and chisel heads Suitable for cleaning heavy paint and rust scale from metal surfaces Palm control trigger mechanism Replacement needle sets available Model No SA52