This classification covers specialized electric power tools other than drills, grinders, sanders, and cutters. As electric power tools specialized for specific tasks in manufacturing sites, it includes electric hammers, electric wrenches, electric nibblers, electric shears, electric planers, electric routers, electric jigsaws, electric band saws, electric chainsaws, electric blowers, electric vacuums, electric polishers, electric screw guns, electric riveters, electric punchers, and others. These are highly specialized electric power tool groups used in diverse manufacturing processes such as metal processing, wood processing, assembly work, and cleaning operations.