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. 

Lightweight and convenient, you can use the Centipede for the following:

• Check your tire tread depth
• Check the width of a broken fan belt or hose for replacement
• Checking nail and metric screw sizes and lengths
• Use as a scale for map reading
• Measure thickness of materials
• Comparing different product sizes at the store
• Job-related measurements
• Visualizing the size of a product based on reading product size specifications
• Comparing the physical size of a part with the product packaging specifications at the store (i.e. buying a replacement plumbing fitting)