This long arm metric key set is engineered for a precise fit and is ideal for deeply inset bolts.|Manufactured from chrome vanadium steel that is hardened and tempered for strength and longevity.|To help prevent corrosion, this key set has a polished chrome finish which is also powder-coated with a bright colour.|Each colour signifies a different key size for easy identification.|Supplied in a fold-out easy-release storage holder to keep the key set organised and ready to use.|Sizes in set are : 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0mm