Retired years ago, transplant from FL... crafter in everything $$$$$$ . Currently a newbie so to speak as a wood turner and looking at using a scroll saw for this Bowl -n- Board for making bowls by cutting rings .750 thick out of lumber or glue ups.. Being of that age when you can't see or remember very good I looking for a widget. Scroll Saw Blade Gauge I had one years ago, looks like a machinist 6 inch scale, lay your blade on the scale and move back and forth till it lines up with the marks, this will tell you the tooth count, scale on back shows a silhouette of the different styles of blade. It handy for used blades, or blades found elsewhere in the shop just a quick reference so don't have to get the calipers and magnifying loupe out to count and squint an $%^&*.