Now this is a useful workshop tool. A ballpoint pen with Parker-style cartridge, calliper gauge with vernier scale, ISO thread scale, and tyre tread gauge. As a measurement tool, the Messograf Caliper Pen has English and Metric scales, covering inside and outside diameters, and a vernier gauge that measures up to 90mm with an accurately to one tenth of a millimetre. Best Made Company’s Brass Messograf Caliper Pen is made in Germany and has a solid brass body.
SOURCE/PHOTO: Best Made Company