This T-bevel epitomizes Japanese craftsmanship. It is well-machined. There is no flash left on the edges, yet they feel almost sharp because the edges are square and clean. It is sleek and simple, yet has weight to it. If you let the blade drop into the scales under its own weight, it sounds like scissors closing or the sheathing of a katana. The knurled brass knob holds without problem. The scales are sturdy, and because the blade is fully encased by them when closed, this T-bevel should be able to take some abuse without getting bent out of shape... but, why would you treat a tool like this carelessly?
I used this tool to quickly get corner angles for custom shelves I built for a walk-in closet in my bathroom remodel. I could quickly get the measurement, scribe the shelf board and make a cut. The longer length allowed me to account for waviness in the drywall and see where gaps may exist. This is an indispensable tool that I didn't even know I needed!
The first one I received was poorly finished by hand at the pinned end. The unit was not ground smoothly from end to end as shown in the item listing. It looks like the end was finished by hand with a belt sander with a courser grind than the rest of the body. It doesn't interfere with the function, but they cut corners on the finish. I returned the first one, thinking I just got a bad one. The second one was slightly better so I decided to keep it, though it is hard to tighten sufficiently as another person noted.
I really like these units. I use this almost every day to install stair treads, flooring, window sills, etc. Only one I know of that the blade folds into itself to protect it in your nail bags. The set screw can be a little tricky to get used to but it’s not a big deal to me.