The right tool for the job-- sure, you can use a jeweler's screwdriver to adjust trim-pots and caps, but how often do you have to guess at the result because the tool is interfering with the circuit? Aven (alignment tool) is non-inductive, non-magnetic, thermally and electrically insulated, and anti-static.

Available in various sizes, you will find the right tool for most of the trim caps and pots you will find on circuit boards. The ceramic tip is rugged, and will last a lifetime if you don't try to use it as a screwdriver. There is a "palm pivot" on the end, so you can turn it through 360° without having to reposition it, and it comes with a plastic protector for the tip.

A handy set consisting of the most popular ceramic adjusters. Blade length is 15 mm and the following sizes are included: Phillips: PHO and PH1.7, Slotted: 0.9, 1.3, 1.8, and 2.6 mm.