Check out Grainger’s hex key and allen wrench assortment, including includes tools for many tasks and trades. A hex wrench or allen wrench features a hexagonal shape and can be used with automotive, plumbing and electrical applications. Use ball-end hex keys at an angle off-axis to the screw. They’re designed to provide 360° rotation at angles up to 35°. Hex keys with T-shaped handles can provide increased turning power and more comfortable grips. Non-sparking, non-magnetic allen wrenches can be useful in hazardous environments. The head of a torx key looks like a 6-point star and is frequently used in computers and electronics. Find the size you need at Grainger.