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Acme Laydown Carbide Threading Inserts 20 16 14 12 10 8 6 4 4 3 2 TPI IR Internal ER External Left Right Hand ID 4080-
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Iscar 5902520 16IR 11.5 UN Laydown Threading Insert, Grade IC908, Carbide, TiAlN Coated, Internal, Right Cut, 3/8" Inscribed Circle, 11.5 TPI (0): Amazon.com: Industrial & Scientific
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