G'day all,
I've had a 305/6" M&W level for many a year, it's been languishing unused for longer than I care to remember, & now I need to use it again.
Can someone remind me what the graduation marks indicate in thou/feet or whatever please? There are some 4 grad marks each side of the bubble centre marks. And, if it's out of calibration, what's the easiest procedure to get it back into order again, assuming there's a trick to it?
Thanks