Hey there Mr./Mrs. amateur watchmaker who appreciates good tools, and is trying to open a caseback that was torqued down by a horny gorilla. I see you looking through the comments to see if you should:A) Buy this one, and hope it's good enough for nowB) Risk butchering your case back with the opener you got in the crappy $20 watchmakers kitC) Spend 60$ on a slightly less crappy hand opener that might still get a touch slippy, ORC) Spend $$$$$ to step up to the Swiss version, and wait weeks for it to arrive, and hope you use it more than twice in this hobby you are just starting out onDo yourself a favor, and just pull the trigger on this. It's worth at least a Benjamin to avoid bashing your knuckles on your bench vise while spontaneously engraving your vintage caseback with a new spiral motif.Just get it. It's really good. The spindle is precise and well aligned, and the spindle nut adjusts easily to put exactly the straight downward pressure you need on the case back. The case vise is well aligned, and there are multiple options for clamping the case, either from within the lugs (nice), or from the outside of the case.Build quality is great for the price. The base plate appears to be cast iron, the spindle is plated mystery steel, and the pillar and vise housing also appears to be mystery steel, not pot metal or aluminum. The pillar housing itself appears to be hollow, but it is plenty rigid. Mine was shipped to my door in 36 hours, and I'm back to work on my project.Overall, I'm extremely happy with this purchase, and I feel pretty confident to revert to this any time the 8 ball doesn't have the oomph.