Tariff classification of carbide inserts and rods turns on evidence, market identity and prospective reclassification after notice.

Carbide throwaway inserts, plugs and rods were examined for classification under Tariff Item No. 68 or Tariff Item No. 62, and the text notes that reclassification after a show cause notice could operate only prospectively once the earlier accepted classification was displaced. On merits, the claim that the plugs and rods were not tool tips, or that they served as wear-resisting parts and measuring gauges, was not supported by evidence. The document also notes that measuring gauges were classifiable under Tariff Item No. 51A at the relevant time, that the goods were not shown to be machine components, and that no trader evidence was produced to prove market understanding as tool tips. The classification under Tariff Item No. 62 was sustained.

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Issues: Whether the goods, namely carbide throwaway inserts, plugs and rods, were classifiable under Tariff Item No. 68 or Tariff Item No. 62, and whether the earlier accepted classification could be displaced only prospectively after notice.

Analysis: The goods had been proposed for reclassification after a show cause notice and the assessee did not dispute that the classification adopted in the final order differed from the earlier accepted position. It was held that once notice had been issued, the established classification could be changed, but only with prospective effect. On merits, the claim that the plugs and rods were not tool tips and instead served a dual function as wear-resisting parts and measuring gauges was not supported by evidence. Measuring gauges were classifiable under Tariff Item No. 51A at the relevant time, not under Tariff Item No. 68, and the assessee failed to show that the goods were machine components. The further contention that classification could not rest on the raw material and that the goods were not known in the market as tool tips was also unproved, no trader evidence having been produced.

Conclusion: The classification under Tariff Item No. 62 was sustained and the assessee's claim under Tariff Item No. 68 was rejected.

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