The Centipede is the metric version of our Inchworm "ruler in the round". It is a functional keychain accessory that you'll use more times than you ever thought. The Centipede is a rod of 4.76 mm [3/16"] diameter 6Al-4V grade titanium with grooves cut at 2 mm increments up to 8 cm long. The outside surface is bead blasted to a uniform matte finish, and new grooves are then cut every centimeter for ease of reading.
Why would you carry a ruler on your keychain? The real question is why not? Think of the possibilities!
The Inchworm is made of extremely hard 6Al-4V titanium. Titanium is known for its corrosion resistance, and has a very high strength-to-weight ratio. It is typically described as having the strength of steel with a weight comparable to aluminum.
The Inchworm comes packaged with a 11/32" diameter split ring for attachment to other items