Hex Allen Keys - Standard series
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Hex Allen keys, also known as hex keys or Allen wrenches, are hand tools used for tightening or loosening hexagonal (six-sided) screws and bolts.
The standard series for hex Allen keys includes sizes ranging from 0.05 inches to 3/8 inches. These sizes are commonly used for general purpose work and are widely available in hardware stores and online.
Hex Allen keys can be made from a variety of materials, including carbon steel, chrome vanadium steel, and stainless steel. Some hex Allen keys are also coated with a layer of black oxide or other material to improve durability and prevent corrosion.
