Oh, this toggle clamp looks nice! What about the adjustability of it? I bought almost the same toggle clamp recently, but the metal of the core was aluminium. I don't remember the exact name of this clamp, so I will do much more research on it. The only disadvantage of your clamp may be the adjustability, because the metal of it is not so stable. If you're adjusting objects more than 5 kilogram, it can be broken in two weeks, so regularly check the stability of your clamp. Anyway, the quality of it is so good, so it is completely affordable for engineers with a low budget.