Check the listing for details. Aerospace Shock Proof Stainless Dial Caliper .001" Max Measure 6" With Case. Condition: Used. Listed at 34.50 USD. This Aerospace Shock Proof Stainless Dial Caliper is the perfect tool for precise measurements in the metalworking industry. The caliper has a maximum measurement of 6.0 inches and a minimum measurement of 0.0 inches. The dial color is black and it has a dial caliper type with 0.001 inch graduations. This caliper comes with a case and is made in China. It is a great addition to any workshop or manufacturing facility. Purchase this quality instrument today and take your measurements to the next level. I do not know the history of this or how this works. It looks like it is a little bit off-center and needs some adjusting. The little end black insert comes out. Looks like it can be attached with a little super glue. Please see photos for more details.