Draper 33506 Metric Hexagon Key, 3.5mm

Product Information

Hex keys are made up from a strong, hard waring material, ensuring optimal strength and a long tool shelf life

Non-sparking designs – While most Allen™ keys use an alloy steel or tool steel material in their fabrication, there are options available that utilize Beryllium Copper in lieu of steel. The Beryllium Copper material will not create sparks if the tool accidentally slips and strikes another metal surface. The non-sparking feature of this material makes these types of Allen™ wrenches suitable for use in applications where the presence of flammable gases or combustible liquids might exist. Hex keys or Allen keys are available in metric sizes and imperial sizes Imperial Allen Keys. They are also available in Allen Key Sets which include a range of popular hex key sizes including 12mm Allen keys. RS also supply Allen keys from leading brands such as Wera Allen Keys, Wera Allen Key Sets and Bondhus Allen Keys In particular, the T-handle design provides a more comfortable grip than the standard L-shaped hex key, but importantly it can also allow for significantly increased torque (provided the gauge of the hex wrench itself is high enough), because the additional weight of the T-handle acts as a counterbalance that can help to seat the tool more firmly and securely in the head of the fastener. Hex keys have a number of important characteristics that make them particularly well suited to the straightforward, user-friendly fastening role that has made them so popular among operators of all experience levels. These include the fact that hex keys:This article provided a summary of the commonly available sizes of Allen™ wrenches/keys and explained the different types of Allen™ wrenches as well as the advantages of these tools. For information on other topics, consult our additional guides or visit the Thomas Supplier Discovery Platform where you can locate potential sources of supply for over 70,000 different product and service categories, including suppliers of Allen™ wrenches and other hex key wrenches.

Where the additional access provided by a long-reach hex wrench is needed, you'd use the more elongated side as the ‘driver', and the shorter side therefore becomes the handle that you turn to tighten or loosen the fastener. However, when a hex bolt is within easy reach and there's plenty of space to work in, long-arm Allen keys can also be handy used in the reverse configuration - the longer side can help provide better grip and torque when operating as a handle. What types of long reach Allen keys are available? Are typically double-ended, thus offering a ‘spare’ hex driver in case of damage or rounding to one end of the tool Hex key sets with T-handles are especially popular with mechanics and automobile enthusiasts, thanks in part to the fact that the T-handle Allen wrench offers certain user luxuries that standard hex keys don’t. L-Shaped Hex Keys: L Shaped Hex Keys or L Keys are the most common type of hex key with a hexagonal tip at each end Lastly, there’s one other added benefit to having both SAE & metric hex keys. In the United States, larger metric half sizes like 6.5 mm aren’t standard in most hex key sets. However, the 1/4″ SAE hex wrench will likely work in place of a 6.5 mm wrench. In scenarios like these, use the chart to estimate the correct alternative. You can test different sizes till you find the best match. We do recommend starting slowly to ensure that you don’t damage the hardware.Tether-ready designs – These Allen™ wrenches include an opening on the handle which can be used to attach a tether that can secure the wrench to the user or to a fixed object such as a scaffold. This feature helps prevent the wrench from accidentally falling into a work area and causing injuries or equipment damage. This feature is useful when the tool user is working on an elevated platform.