Sealey Air Needle Scaler Pistol Type SA501Pistol type scaler suitable for cleaning heavy paint and rust scale from metal surfaces. Removable needle head allows use as a standard air hammer but requires additional chisel set and spring retainer (not included). Features variable speed trigger control. Spring retainer, needle and chisel sets available separately. Specifications Detail Pistol type scaler suitable for cleaning heavy paint and rust scale from metal surfaces. Detail Removable needle