23 TOOLS USED BY WELDERS AND IN CONNECTION WITH WELDING AND CUTTING DEVICES AND PROCESSES-NAMELY, CHIPPING HAMMERS, CHISELS, HOSE BAND CRIMPING AND FERRULING PLIERS, WORK HOLDING CLAMPS; AND TOOLS FOR THE MAINTENANCE AND REPAIR OF REGULATORS AND TORCHES-VIZ., TIP PULLERS, HEAD AND TIP RESEATING TOOLS, DIES, TAPS, ADAPTER REMOVING TOOLS, SPRING COMPRESSING TOOLS, AND WRENCHES FOR CYLINDERS, NOZZLES, TORCHES, REGULATORS, LOCK NUTS, AND VALVES