Snap-on Tools, 2195 State Line Rd, Elizabethton, TN 37643, US

Mayes Brothers Tool Manufacturing Company has been successfully meeting the needs of skilled professional tradesmen since its establishment in 1874. As one of the world's leading producers of superior quality levels, the company provides customers with an entire range of models and materials that include wood, aluminum, plastic and wood/brassbound levels. From its Signature Series and Professional Masons lines of levels to the Uni-Vial Homeowner and Carpenter lines, Mayes products are made in the United States and provide rugged durability and precision performance. The company also manufactures dozens of other straight edges, rules and T-squares. The company is a division of Great Neck Saw Manufacturers, a leading manufacturer and distributor of hand tools for the hardware, home improvement, automotive and mass retail markets nationwide. Mayes Brothers Tool Manufacturing Company is located in Johnson City, Tenn.