The large rounded ends make them useless for any fine work, and the small area that actually comes together makes them useless for any larger work. The placement of the hinge only allows about 2cm of separation, which makes it difficult to hold an maneuver, and the tweezers are placed so far back that you can't even see them through the magnifier unless you angle them flat against the surface you're working on. Excel's motto is “Our edge makes the difference” but these tweezers have none.