This US PRO 6pc chrome vanadium flare-nut spanner / Wrench Set includes 6 double-ended spanners, offering 12 sizes from 6mm to 24mm. The tools are made from heat-treated, hardened, and tempered chrome vanadium steel with a full mirror polished finish. They feature 15-degree offset ends, making them ideal for use on brake pipes, gas pipes/fillings, air conditioning pipes/fillings, diesel pipes/fillings, diesel injectors, and more. This complete 6pc set comes with a heavy-duty hangable storage pouch.