Features: hexagonal flanktraction profile high gloss chrome-plated, chrome vanadium, in sturdy plastic case, technical data: diameter (mm): 43 intake in inches: 1/2 inch, outer 12 angle: 1 1/4 inch, diameter: 43 mm, shape: knurled, weight: 380 g, total length: 82 mm, material: finest chrome vanadium steel, high-gloss chrome-plated, key width: 1 1/4 inch, profile standard: DIN 3120, ISO 11725 mm, depth 3124 mm.