Messograf Pen Calipers

The Messograf Pen Calipers is a remarkable all - in - one tool. It combines the functions of a caliper rule, tire tread gauge, ruler, thread scale, and a writing instrument. Crafted from high - quality chromium - plated brass, it's designed for those who seek more than just the pleasure of writing. Many have attempted to replicate it, but this is the original and unbeatable version. This retractable ballpoint pen comes with a large ink cartridge and is proudly made in Germany.

Using the Messograf Pen Calipers is a breeze. When you want to write, simply click the pen to extend the ballpoint tip. It writes smoothly thanks to the large ink cartridge. For measuring, use the caliper rule part like you would a regular caliper, and for checking tire treads, place the appropriate part on the tire. The ruler and thread scale can be used for their intended purposes too. As for maintenance, keep it clean with a soft cloth. Avoid dropping it to prevent damage to the pen tip or the measuring parts. And when the ink runs out, you can replace the cartridge easily. Just make sure to store it in a dry place to keep the brass from corroding.