General Tool 4 In. Illuminated Magnifier

4-inch diameter magnifier with 3 power lens that covers large areas of print. Features a powerful 3X lens and a built-in bifocal insert for 5X magnification of extra-fine details. Bulb gives wide circle of illumination. Switchable light aids inspection in poorly lit areas. Plastic body and optical plastic lens. (2) C batteries included. Great for quality control inspections, jewelry making, and electronics assembly. Commonly used in stamp collecting, coin collecting, and model building. Focal length of lens is 3-1/3 inches, bifocal is 2 inches.