I've got a Dake press I got at a auction. It is 25 ton manual. The pins on it are 3/4. The steel on that one looks everybit as strong as my factory built one. I would think you could increase the relief pressure some to get more out of it. I think mine is made from 6" channel. I got a smoking deal on it. Paid $200 for it about 10 years ago


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