Some handy measuring tools below. Not all of them result in a number, but then all measuring is comparing one dimension to another.
if you view any other image on this page, the next one is the one to view. These are lever clamping sliding bevels. The rosewood version was made by Hold-Fast company years ago. Veritas used to made a copy of this. These are the best barr-none version of this tool ever made. Once the angle is set by pushing in the lever (shown sticking up) you can use them with either side down. Can’t do that with the wing nut screw setting bevels which don’t hold well any way. Well, not unless you rip the skin off your fingers tighenting them. We use both of these tools on every guitar. Sliding bevel angle keepers are especially helpful on V-braced restorations because there are 4 and sometimes 6 angled cuts to make. You mark the angles and make the cuts on smoothed square brace pieces, then cut and fit the lap joints, shape the brace profiles, then glue to the top. If the joints are not perfect nothing works.
Below are two Starrett double squares. Like the tools above, these are the best you can buy bar none if made in USA. It seems modern production has moved to some Asian county. Very bad. Typical uses are finding fret board center line, depth detection, checking bridge attachment area for flatness, checking many other parts for flatness. I like these small tools because they are light and easy to handle. I have owned many other brands of these tools and thrown them all away because the blades don’t slide easily. And these are dead on accurate at 90 degree. Cheaper versions are a PITA. Remember: cheap tools are cheaper because they are made cheaply. Cost cutting is the thing these days, or so it seems.
I managed to hang on to the tools below from my third grade experience. They are used to measure guitar side cracks to determine how long to make a patch. They easily conform to the inside or outside surfaces of any guitar side. Very handy for that task. These are "Safe-T" rulers required for elementary school students who were prone to wacking each other on the head with wooden rulers. I gave one set to my friend who went to Catholic school. Funny how he never complained about getting hit on the hand with his ruler.
The next two images show both sides of my little pocket rule. Though nice for measuring, the best use for me is the side with the fraction to decimal conversion chart. We have them all over the shop. Not too bad for small measurements either.
The next image is my el cheapo depth measuring tool. There are many brands and versions of this tool which all appear to be made by the same manufacturer. In my opinion, the best version is the cheapest.
Below is my go-no-go fret slot measuring tool. We have the version sold be Stewmac, but I like this better. It is easier to shove this long handled thing into a fret slot to make sure the slot is deep enough, and much easier to get it out. Plus, we already had a good sized pile of old feeler gauges.
Below is an old Starrett 12 inch rule. Got this in trade out of some old boy’s junk box. It is way too rusty for measuring, but superb when a dependable straight edge is needed. Great for checking fret top alignment.
Here is another 12 inch. Not to include this nice hang up ruler hurts its feelings. It gets mad and falls on the floor somewhere. Tools are very sensitive to miss-treatment. Keep them clean and rust free or they find someway to hide from you when you need them most.
©2019 D.R. Hanna