This 9 Piece Colour Coded Hex Key Set from Faithfull is designed for easy metric size identification. Made from professional quality S2 stainless steel, these keys offer excellent impact resistance. Each key features chamfered edges to prevent damage to the blade and fitting, and a ball end design allowing for up to 25 degrees of access to screws in difficult or deep-set locations. The colour-coded blades and clear size markings on the handy storage caddy ensure quick and easy selection. The set includes metric sizes from 1.5mm to 10mm, with smaller keys featuring oversized shafts for added strength and ergonomics. The storage caddy provides safe storage in pockets and toolboxes.