Grizzly Industrial G9788-4 pc. Measuring Tool Set
This is the set you need for accurate measurements. Includes a stainless steel 6" dial caliper, a 6" scale with an inch scale on one side and a metric scale on the other, a 1" carbide tipped micrometer with vernier scale and a 4" precision square with beveled edge. Comes with molded cast and micrometer adjustment wrench.