I have one of the Harbor Freight presses. I actually use the jack out of the press more than I use it in the press, but it works fine. It is kind of dangerous, though, I've sent a few things flying across the shop. Do yourself a favor and make an apron out of something heavy to protect your torso, and wear a face shield. Safety glasses aren't going to stop a shard of metal pushed along by 20 tons of force.
