GT-4R economy toggle switch guard. The CW GT-4R Toggle Safety Cover (toggle switch guard) is red . This is a good commercial grade toggle switch guard at an unbelievable price! The mounting base faceplate is glossy black steel and the safety cover is an ABS blended plastic resin. The mounting hole is .481” and accepts all standard toggles with 15/32″ mounting stems. The GT-4R is used in a wide range of commercial applications including specialty vehicles, power plants, command centers, agricultural equipment, racing and general industrial automation, the CW Safety Cover prevents any inadvertent or accidental lever actuation. When the cover of the GT-4R is raised, the toggle can be operated freely. When the cover is fully depressed, the toggle is locked in a stable position. The Toggle cover is attached to the switch by means of a threaded nut.