Snap-on understands the mechanics of the automotive repair business. It's a leading manufacturer and distributor of high-quality hand tools, as well as auto diagnostic equipment and "under-car" shop implements, such as hydraulic lifts and tire changers. It serves mechanics, car manufacturers, and government and industrial organizations. Snap-on's products -- with brand names Snap-on, Blackhawk, Mitchell, ShopKey, Sun, and others -- include air-conditioning service equipment, collision repair equipment, management software, roll cabinets, screwdrivers, tool chests, wheel balancers, and wrenches. The firm publishes Tech, a lifestyle magazine that's free and hand-delivered by dealers to 1 million technicians.