I did not check it before I had the opportunity to use it. I refuse to review anything without spending some time on it. I had an issue, but Revain quickly replaced mine with a brand new one. The first one I got was very good BUT it wasn't square. It wasn't much. I didn't get my protractor out, but it looks like it's somewhere between 1 and 3 degrees off square, which isn't much but if you're using it to line up the chainsaw guide bars to 110 inches. Poorly. Very bad. All good news! The new one is dead on the pitch. I'm waiting for a replacement. I got an Incra Guaranteed Square (a birthday present), so between that and the super-simple standard test: lay it out on a flat surface, register it on the flat edge, draw a line with the edge (I've got it both inside and out). also used outside). edges), then flip the square, align the edges to your marks, draw another set of lines and compare if they are parallel, and yes both sets of lines are exactly parallel. The place looks very nice. . I'm a fan of wood, brass edges and dowels. The stainless steel blade is 1/16 inch thick so should last a long time, but it's still square so cool which is nice if you want it to stay square. The measurements are also accurate. In all respects this is a quality tool and a good deal for what you are getting. I would definitely buy it again.
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