The right tool when space is tight
Allen keys – also known as hex keys – are designed for hexagonal socket screws and are a go-to solution in tight or hard-to-reach spaces. Their L-shaped design gives you excellent leverage, and the compact size makes them easy to carry in your toolbox, bike bag or even your pocket.
Metric, imperial, or colour-coded?
Biltema offers a variety of Allen key sets to match your needs. Choose between metric or inch-based sets depending on the project. Want to stay organised? Colour-coded versions make size selection quicker and more efficient. For added flexibility, foldable Allen keys are perfect for mobile repairs or travel use.
Handy additions to your toolbox
Allen keys pair well with other hand tools, especially screwdrivers, wrenches, and pliers. If you're working with bikes or assembling furniture, consider adding a torque wrench for precision tightening.
FAQ – Allen keys
What’s the difference between metric and inch Allen keys?
Metric keys are measured in millimetres, while inch (imperial) keys are measured in fractions of an inch. Always match the key to the screw.
Are foldable Allen keys durable?
Yes, they are built to last and are a convenient option for portable toolkits.
Do Allen keys work for all hex screws?
As long as the size matches, Allen keys work for most hex screws in furniture, bikes, and machinery.
Can I use an Allen key with a drill?
Yes, but you’ll need a compatible hex bit for your drill. Regular Allen keys are manual.
Are Allen keys rust-resistant?
Biltema’s Allen keys are made of robust materials, and many models are coated to resist rust and wear.