Hex Keys

Klein brand hex key tools and sets are professional-grade fastening instruments designed for electrical, telecommunications, and general construction applications, featuring precision-machined hardened steel construction with exact dimensional tolerances that ensure secure fit and reliable torque transfer on hex socket fasteners. These comprehensive tool sets include both metric and standard hex keys in ball-end and straight configurations, organized in folding cases or individual L-shaped keys that enable electricians, HVAC technicians, and maintenance professionals to access recessed hex bolts and screws in tight spaces where conventional tools cannot reach.