These metric L-wrench hex keys are constructed from fully hardened carbon steel in accordance with DIN 911. A quality ductile key with precision cut ends and accurate AF dimensional to ensure maximum socket contact. Ball end allows up to 30° work offset. Long arm end is ball drive and short arm end plain. Finished with a black oxide for further resistance to wear and tear. Features and Benefits • Black oxidised finish to bolster resistance to corrosion and weathering • Manufactured from fully hardened carbon steel making for a robust product • Available in a variety of sizes to ensure you find the product best suited to your needs • Dual purpose with one plain end and the other with a ball drive Typical Applications • Furniture Construction • Bicycle Repairs Standards • Conforms to DIN 911