I'm bending 16 gauge mild steel and it rolls nice. I've also done rod on it, with the side slots and it does a great job and cable of perfect circles. It's super manual with zero instructions. However, you can figure it out quite easily with scrap pieces. It came with broken front plastic handles, since the packaging was crap and didn't protect them enough. It's HEAVY so they prefer to not return ship it as broken, instead they refunded me to buy my own replacement handles. Annoying yes, however they provided enough refund for a couple pairs, even though they were tricky to find with zero specs, even after I asked for the specs. Regardless, it works without the handles really, the screws to adjust the rollers are smooth and easy to move. I think you get what you pay for, but overall I'm pleased because it gets the job done and seems solid and should last, regardless of the handle issue. Be aware the Vevor one is identical, I ordered this Mophorn roller, and the Vevor one was shipped to me and looks identical. In case someone is comparing, that might help with that question.