Features: hexagonal flanktraction profile according to DIN 3124 / ISO 2725Internal square according to DIN 3120 / ISO 1174 with ball groove Long design for manual actuation Matt satinised chrome vanadium Technical data: key width (mm): 28 square drive 3/4 inch diameter: 36.0 mm Weight: 235 g Total length: 52.0 mm Material: Finest chrome vanadium steel, matt satinised decoration ISO 27.0 mm