3-in-1 hexagonal angle key wrench set, 8 pcs, ball head, long. Supplied = assembled. Conforms to = DIN ISO 2936. Feature = fully hardened. Model = hex socket with ball head. Number of parts = 8 pcs. Unit of measurement for hex key = metric. Product type = hex keys. Long model. DIN ISO 2936. With ball head on the long end. Ideally suited for screws that are difficult to reach. Handle with double function (holder/T-handle) Fully hardened. Matt chrome plated. Special tool steel.