7 machines and power-operated tools for use in railroad construction; namely, rail cutters, rail drills, sleeper drilling machines, rail web grinding machines, rail grinders, rail deburring and switch grinding machines, hydraulic rail pullers, rail movers, hydraulic rail pulling and pressing tools, hydraulic joint opening tools, rail carrying rollers, portable impact wrenches, hydraulic power wrenches and drilling machines, fish bolt wrenches, rail lifters, rail lifting rollers, rail loaders, rail-carrying tongs, rail-carrying tongs for power lifting appliances, lateral rail movers, ratchet track jacks, obstructionless track jacks, hydraulic track jacks, gantry cranes with integrated single sleeper laying units, manual wagon movers, electrical tampers, powered rail tilting machines, jaw cramps, roller rail machines, rail loaders transporters, loaders for rail-carrying trains, rail threaders, torque meters for setting or testing power-operated screwdrivers