Specifications
| Category | Specification | Details |
| Model | Part Number | 2225964 (Series 19 SK 21) |
| Sizing | Socket Size | 21 mm |
| Drive Size (External) | 18.95 mm (1/2" Hexagonal) | |
| Physical | Total Length | 33 mm (Short Pattern) |
| External Diameter | 29.2 mm | |
| Weight | 0.04 kg (40 g) | |
| Material | Construction | Chrome-Molybdenum Steel (42CrMo4) |
| Finish | Polished, Chrome-Plated | |
| Standards | Torque Specs | Exceeds DIN 3124 standards |