This is an engineer/locksmith line. The pocket clip on this type of ruler is essential for taking and transferring accurate measurements. The clip on this ruler is useless. Looks like someone bent it to fit with pliers. The depth gauge should slide easily and be exactly 90 degrees to the ruler. On this he flops by plus or minus 20 degrees. I bought a similar Johnson line from another seller. While Johnson isn't perfect, he's three times better than this one. With the Johnson, the clip slides better, stays closer to 90 degrees, and the ruler itself is twice as thick. It's just a cheap imitation stamped from the cheapest materials. The only reason I gave it two stars is because the stamp measurements are accurate when all you need is a plain flat ruler.
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