Before the introduction of the euro, francs were also used in France, Belgium and Luxembourg, while Andorra and Monaco accepted the French franc as legal tender (Monegasque franc).
Inside the caliper is a brake pad, a small block of friction material backed with a metal plate. When you step on your brake pedal, pistons inside the caliper cause it to apply pressure to the brake pad which squeezes the rotor, causing the car to slow or stop.
Calipers are measuring tools used to precisely determine the width of a gap or object, much more accurately than a tape measure or ruler. Besides digital models, which uses an electronic screen, a caliper can display the measurement on a pair of scales (vernier caliper) or on a scale and dial gauge (dial caliper).ips. 1  Consider purchasing a digital caliper if you are having trouble reading a vernier or dial caliper. 2  To reduce the risk of errors, store your calipers with the jaws slightly apart. 3  Periodically remove dust and grime between the jaws by wiping with rubbing alcohol or mineral spirits.