| Customization: | Available |
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| Type: | Hex Wrench |
| Material: | Carbon Steel |
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A hex key (also, hex wrench, Allen key and Allen wrench or Inbus) is a simple driver for bolts or screws that have heads with internal hexagonal recesses (sockets).
Hex keys are formed from a single piece of hard hexagonal steel rod, having blunt ends that fit snugly into similarly shaped screw sockets. The rods are bent to 90º, forming two arms of unequal length resembling an "L". The tool is usually held and twisted by its long arm, creating a relatively large torque at the tip of the short arm; it can also be held by its short arm to access screws in difficult-to-reach locations and to turn screws faster at the expense of torque.
Hex keys are designated with a socket size and are manufactured with tight tolerances. As such, they are commonly sold in kits that include a variety of sizes. Key length typically increases with size but not necessarily proportionally so. Variants on this design have the short end inserted in a transverse handle, which may contain multiple keys of varying sizes that can be folded into the handle when not in use.
| Material | Carbon Steel |
| Specification | M5-M20 |
| Standard | ISO/ASME |
| Lead Time | 7~25 working days |
| Exterior Finish | Black/Nickel Plated |
| Used | construction/automotive vehicle/machinery |
| Packaging | Carton Boxes + Pallets |
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