Browsing arround I stumbled upon this little keychain tool, well not tool per se more of a small helper….

I didn’t want to post links to anywhere, but I’ll post some pics… Though didn’t find much info about this, and only online seller is apparently from NZ…. :think: :think:

Basically it’s a keychain which can be used to figure size of nut/bolt in both metric and ISO… IMHO cute little thing, and can be usefull to untrained eye, or someone who deals with both metric and ISO measures…