Angle key wrench set, extra long, hexagon socket, inch as unit, 14 parts. Supplied = assembled. Material = special tool steel. Finish = matt chrome plated. Conforms to = DIN ISO 2936. Feature = fully hardened. Model = for difficult to access screws. Number of parts = 14 pcs. Unit of measurement for hex key = imperial units. Product type = hex keys. Extra long model. DIN ISO 2936. Fully hardened. In a sturdy folding holder. Special tool steel, matt chrome plated.