Compare list full


A hex key, also known as an Allen Key, Allen wrench or hex wrench is a small L shaped or T shaped tool with a 6-sided hexagonal tip which is used to loosen hex socket screws or bolts.

### Types of Hex Key

**L-Shaped Hex Keys:** L Shaped Hex Keys or [L Keys](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=4294379624) are the most common type of hex key with a hexagonal tip at each end

**T-Shaped Hex Keys:** T-shaped hex keys or [T bar Allen Keys](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=4294379631) have a crossbar or T shaped handle at the end which provides a better grip

**Folding Allen Key Sets:** [Folding Allen Key Sets](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=4290511960) consist of an outer casing from which a selection of different sized Allen keys can be unfolded, a bit like a penknife or multi-tool

Hex keys or Allen keys are available in metric sizes and imperial sizes [Imperial Allen Keys](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=4294407154). They are also available in [Allen Key Sets](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=xyz) which include a range of popular hex key sizes including [12mm Allen keys](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=4291389928). RS also supply Allen keys from leading brands such as [Wera Allen Keys](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=4294964448), [Wera Allen Key Sets](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=xyz) and [Bondhus Allen Keys](https://uk.rs-online.com/web/c/hand-tools/screwdrivers-hex-torx-keys/hex-keys/?applied-dimensions=4294966929)

For more information please refer to our [Hex Keys Guide](https://uk.rs-online.com/web/content/discovery/ideas-and-advice/hex-keys-guide)

For our range of hex socket screws please see [Socket Screws](https://uk.rs-online.com/web/c/fasteners-fixings/screws-bolts/socket-screws/)



Shop our range of Hex Keys Sets and Allen Keys. Free Next Day Delivery. Browse our latest Hex Keys & Sets offers.

Hex Keys | Hex Key Set | L Shape Hex Keys | RS

Hex Keys

Shop our range of 2mm Allen Keys. Free Delivery Available.

2mm Allen Keys | RS

Shop our range of 3mm Allen Keys. Free Delivery Available.

3mm Allen Keys | RS

Shop our range of 6mm Allen Keys. Free Delivery Available.

6mm Allen Keys | RS

Shop our range of Allen Hex Keys. Free Delivery Available.

Allen Hex Keys | RS

Shop our range of Bahco Hex Keys. Free Delivery Available.

Bahco Hex Keys | RS

Shop our range of Bondhus Hex Keys. Free Delivery Available.

Bondhus Hex Keys | RS

Shop our range of Facom Allen Keys. Free Delivery Available.

Facom Allen Keys | RS

Shop our range of Long Reach Allen Keys. Free Delivery Available.

Long Reach Allen Keys | RS

Shop our range of T Bar Allen Keys. Free Delivery Available.

T Bar Allen Keys | RS

Shop our range of Wera Hex Keys. Free Delivery Available.

Wera Hex Keys | RS

Buy BETA Hex Keys. Browse our latest BETA Hex Keys offers. Fast and hassle free delivery.

BETA Hex Keys | RS

Buy CK Hex Keys. Browse our latest CK Hex Keys offers. Fast and hassle free delivery.

CK Hex Keys | RS

Buy Knipex Hex Keys. Browse our latest Knipex Hex Keys offers. Fast and hassle free delivery.

Knipex Hex Keys | RS

Buy from our selection of Hex Keys from RS PRO. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

RS PRO Hex Keys | RS

Buy from our selection of Hex Keys from SAM. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

SAM Hex Keys | RS

Buy from our selection of Hex Keys from Teng Tools. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Teng Tools Hex Keys

Popular Searches