According to Dennis Powell, founder of cast-iron cookware maker Butter Pat Industries (now owned by Yeti), it’s really a “machining ring.” The Smithey Ironware No. 10 Cast-Iron Skillet, with a heat ...

Kevin Paul, daughter Lisa Davis and Chuck Paul of Paul Precision with two of the cast iron cylinders the company machines. Paul Precision Machine Inc., a Tulsa machine shop, specializes at machining ...