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Square drive as per DIN 3120 - C 12.5, ISO 1174, with ball retention groove TORX = reg. trademark of Acument Intellectual Properties, LLC. USA
| Length | 77mm |
| Insert Diameter | 21.3mm |
| Working Length | 77mm |
| Material | Chrome Vanadium Steel |
| Product Type | Sockets Double Hexagon |
| Width | 21mm |
| Height | 21mm |
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