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Sunnen makes honing, lapping, skiving, and deep-hole drilling machinery and tools for precision manufacturing.
Founded in 1924 and based in St. Louis, Sunnen Products Company supplies precision machining equipment and services. Its products include honing, lapping, skiving, and deep-hole drilling machinery, along with custom tooling, training, and support. It serves aerospace, automotive, medical, and defense manufacturers. P4G Capital Management acquired the company in December 2023.
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