8 Hand tools, hand operated; parts of hand operated clamping tools, namely, mandrels, spindles, flanges, sleeves, drill chucks, sliding jaw chucks, intermediate bushings, support rings, valves, tool holders; hydraulic clamping tools, hand operated, namely, clamping mandrels, clamping chucks, clamping collets, clamping bushings; mechanical clamping tools, hand operated, namely, clamping mandrels, clamping chucks, clamping collets, clamping bushings