This Faithfull Multicoloured Hex Key Set contains a selection of professional quality keys made with S2 steel which makes it highly resistant to impact. The keys are colour-coded to allow for easy size identification and are held together by a plastic clip with a twist and lock action to secure the keys into their slots. The ball end design of the keys enables access to deep-set screws or hard-to-reach places at offset angles.The handy storage caddy ensures the key set can be safely stored in pockets and toolboxes. The key sizes are clearly shown on the caddy.Metric Sizes: 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 8.0 and 10.0mm Ref: UTTK11157