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): 25Square drive: 3/4 inch diameter: 35.0 mm Weight: 246 g Total length: 52.0 mm Material: Finest chrome vanadium steel, key width DIN 1174, chrome-plated