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half nuts
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Problem with half nuts on circa 1940's S B 9A
my friend just bought a SB 9A lathe and all was well for a few days. Then he wanted to try threading . The half nuts seemed fine when inspecting the machine at purchase. But when he flipped the half nut engaging lever the unit " jumped and banged for anfew seconds then quieted down but couldn't...- joebiplane
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- half nuts
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