Aug 4, 2009
Caliper pen
Das original! It’s the German-made Messograf caliper pen from Cleo Skribent. Built into the retractable ballpoint pen is a 4? Vernier caliper that measures in increments of both 0.1mm and 1/16?. The pen also functions as a metric screw thread scale and a tire tread depth scale. Garrett-Wade carries them.
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