Handle with care.
Dit is een precise instrument / This is a (precision) measurement tool with exact dimensions and straightness.
That means tapping it gently; but not hammering, or using it as a crowbar and so on (if you need a crowbar - these are wonderful for that !)
It is very important that if you accidentally drop it; or think it may be out of line - that you either mark the tool very clearly -- or report this to the mailing list. So that your fellow makers do not ruin their work.
This equipment is Noise Category 3: Can be used at all hours. No limits.