Allen Key also called as Hex Key or Allen wrench, is a L shaped tool used to drive bolts and screws with hexagonal sockets in their heads. Allen key has long arm and short arm design offers extra reach on one end and extra leverage on the other. Black Allen keys are made from Chrome Vanadium Steel which withstand upto 30% higher torque as compared to Allen keys made Carbon Steel. TAPARIA Black Allen Keys are scientifically hardened to 52 to 56 HRC. Learn about the origin and evolution of hex keys, also known as Allen wrenches, for bolts and screws with hexagonal sockets. Compare different designs, sizes and brands of hex keys and their applications. Taparia brings this set of 9 Allen Keys that are designed to let you avail two advantages that are important in fastening jobs. You can use the long arm to reach fasteners that are located in tight spaces and the short arm to extract more torque for fastening tasks with ease
