9 power operated portable refrigerant charging station consisting of controls, gauges and valves and associated refrigerant and hoses all sold as a unit; vehicle headlight alignment gauges; vehicle diagnostic machines and tools, namely, hand held computer which interfaces with a vehicle on-board computer, test gauges for vehicle emissions, ignition timing and oil pressure, fuel pump tester, cylinder compression tester, bearing oil leak detector, cooling system leak detector and transmission oil pressure tester; dynamometers; machines and gauges for testing internal combustion engines namely, electrical, ignition, transmission, exhaust, carburetor and fuel compression testers and analyzers, pressure gauges; OHM meters; voltmeters; capacitor analyzers, portable refrigerant charging station consisting of a recovery tank, flushing gun, charging meter, injectors, hoses, manifold gauges and vacuum pump; portable torque converter and air cooler cleaning machine, consisting of tank, hoses and gun; computer software for selecting vehicle and tool replacement parts; electronic battery testers; vacuum gauges for refrigeration systems; electrical diagnostic machine for identifying types of refrigerant; and solenoid valves