The hex key is the best known hex tool in use. It provides an inexpensive and convenient solution for occasional or low volume fastener insertion or removal. Hex Key Considerations: Hex keys allow insertion and removal by spinning the blade between the fingers. Ballend hex keys are far more efficient than a straight hex blade, since they allow quick insertion from a range of angles. Even when working in wide open spaces, a ballend is a real timesaver. Easily carried in a pocket. Allows working in tight to reach areas. Hex keys require an extension handle to reach the full torque capacity of the long arm of the blade

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