Snap-on Incorporated makes hand tools, power tools and diagnostic equipment sold primarily to professional mechanics and technicians, distributed largely through a network of mobile franchised dealer vans that sell directly to repair shops and individual mechanics. Its mobile van distribution model, where independent franchisees drive directly to auto repair shops and other work sites to sell tools, differs from most tool manufacturers that sell primarily through retail stores or industrial distributors. Snap-on's diagnostic equipment business makes specialized electronic tools used to diagnose and repair increasingly complex modern vehicles, a growing category as cars incorporate more electronics and computer systems requiring specialized diagnostic tools. The company's revenue tends to be relatively resilient across economic cycles, since professional mechanics need reliable tools for their livelihoods regardless of broader economic conditions, though vehicle repair volumes can be affected by how much driving consumers do and vehicle age trends.