Tackle tough fasteners like a champ with this hex key set from Wera. It has nine tools ranging in size from 1.5 to 10mm, so it suits a wide range of fittings. Each piece has a Hex-Plus profile, which provides a larger contact area in the screw head to ensure a wobble-free fit. Thanks to the ball end on each arm, you can use these keys to install or remove fittings in awkward areas at an offset 30° angle.

• BlackLaser surface treatment for improved resistance to corrosion
• Comes with a durable clip for safe storage and transportation

• Industrial control systems
• Agricultural equipment
• Medical facilities

Thanks to the laser-engraved size markings, it's a cinch to pick out the tool you need for your task.