China's export curbs on critical metals disrupt supply of tungsten carbide micro drill bits

China's export controls on critical metals have disrupted supplies of micro drill bits made mainly from tungsten carbide, which are used to make PCBs and chip substrates.

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1. 2026-11-05 06:10 · Techmeme
   Sources: China's export curbs on critical metals have disrupted supplies of micro drill bits made mainly from tungsten carbide, used in PCBs and chip substrates