The Mayhew 45052 SAE Twisted Hex Key Set is made of superior quality S2 tool steel, engineered for demanding applications. Twisted prior to the heat treat to increase torque capacity, each key features a longer shaft for added leverage. The set exceeds ANSI standards and is color-coated to resist corrosion, with manganese-phosphate contact areas to resist wear.
This comprehensive 9-piece set includes fractional sizes: 1/16, 5/64, 3/32, 1/8, 5/32, 3/16, ¼, 5/16, and 3/8 inch—covering the most common applications for gunsmithing, automotive work, and general maintenance. Made in the USA, this set combines the durability and precision that gunsmiths and technicians rely on for professional-grade work.
