| Brand | Yato |
| Entity responsible for this product in the EU | TOYA S.A.More |
| Series | GRD |
| Socket size | 9 mm |
| Holder size | 1/2" (12.7 mm) |
| Socket type | dodecagonal, long |
| Length | 77 mm |
| Socket outer diameter | 16 mm |
| Socket with drive adapter diameter | 22 mm |
| Material | CrV 50BV30 |
| Surface finish | chrome plated, satin, polished |
| Hardness | 43-47 HRC |
| DIN | 3121 |
| AS-DRIVE | yes |
| Symbol | YT-12931 |
Double-cornable cap from YATO YT-12931. Made of durable, tool-tool steel CRV 50BV3, matrix forged, and before the hardening process, calibrated with precise fittings and control devices.
