Specimen tubes in the shop

[mklotz]

I've used the little square tubes from end mills to hold small parts, but it's rarely worked out well, Mainly because it's easy to forget what's inside since they are generally some solid color. Your idea is much better. Specimen bottles are generally not opaque so it's easy to see what's in there. The loop on the lid for attachment is an added bonus.

Some of the specimen containers have "write-on" sections where one can pencil-in notations about the contents.

The larger size shown in my first photo lacks the loop provided so nicely on the small size. This can be solved by drilling a small hole (# 60 or 3/64) through the tube and threading a bit of bell wire through the hole. If the hole passes through the cap and the tube the wire will work to retain the cap as well as fasten the unit to whatever.