For those of us that don’t have higher end zoom Amscope stereoscopes these are almost too much magnification. 10x is normally just about right. That said, they are good for inspection and really tight work. Whiskers? 0402? OK. They are well made. Just understand that as the magnification increases your working distance shrinks. You are working with a 650-700F soldering iron that you can’t see until it’s within about half of inch of the project you are viewing. And the working distance (focus) will be about 1″ / 2.5mm. These are accessory optics for special situations.