The World’s Largest Thread Roller
Tucked away in a corner behind Keystone’s tooling die library is a filing cabinet stuffed with decades of history. The Tesker 840 is one of only four or five of the world’s largest thread rollers ever built.
Take a Tour: Inside KTP
Our team has 450+ years threading experience producing USA-made parts that are recognized industry-wide for quality, reliability, and excellence.
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