Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 59 Machine-tools (including way-type unit head machines) for drilling, boring, milling, 84 59 70 Threading or tapping machines for metal, worked by removing metal, nes Commodity Code Description 84 59 70 00 Threading or tapping machines for metal, worked by removing metal, nes 84 59 70 10 Electrically operated 84 59 70 20 Not electrically operated