Long arm, six-sided, fully hardened, chrome vanadium hexagon wrenches for driving socket screws. Frequently used on machinery when securely fastening parts together and on domestic appliances and cycles. All keys from 4mm have chamfered edges to prevent damage to blade and fittings. All keys 3mm and above are marked with their size. Features: Professional quality Long arm, metric sizes Long arm, metric sizes Key sizes over 4.0mm have chamfered edges for a better fit into the fixing Key sizes over 3.0mm are marked with their size Specifications: Dimensions: H:26.7 x W:2.0 x D:7.1 cm Colour: Black Guarantee:5 years Material: Metal Model Number: FAIHK170MLA