Clarke X-Pro - Professional 150mm Air Hammer Model Number: CAT139 Professional short nose 150mm Air Hammer. This robust air hammer is supplied complete with pointed, flat, panel cutting and v-groove chisels. For sheet metal cutting and channelling in concrete, block work etc. X-Pro air tools are a superb new range of top quality professional tools built for tough daily use in garages. Compare View Product Chicago Pneumatic Chipping Hammer Model Number: GV5 Chicago Pneumatic Chipping Hammer Compare View Product