TECHNICAL INFORMATION Click on any of the links below for technical help on a variety of thread and form rolling applications: PDFThread and Form Rolling Technical Data Manual (PDF – 2.40MB) PDFThread Rolling with Flat Dies Technical Data Manual (PDF – 2.04MB) PDFKnurls and Knurling Technical Data Manual (PDF – 1.59MB) PDFExternal Pipe Threads Technical Data Manual (PDF – 1.22MB) PDFA22 Lubrication Requirements (PDF – 613KB) PDFA22 Work Revolutions Chart (PDF – 79.2KB) PDFHartford Flat Die Machine Load Charts (PDF – 4.93MB) PDFThread Rolling Attachments and Thread Rolls (PDF – 21.7MB)