Freno rotulae altae efficientiae, ad aptum celerem conligendum et solveundum. Optimum ad usus automotivitatis, mechanicorum et emendationum domesticarum.
Haec clavis ratcheting praebet meccanismo ratcheting praecisionis alti-torque, quod continuae rotationis sine amotione clavis ab aptatore permitit. Manus ergonomica certam prehensionem durante usu prolongato securat, dum durabilis constructio chromii vanadium ferri vim longaevam et resistenciam corrosionis praebet. Clavis cum socket standardibus compatibilis est et in variis magnitudinibus drive ad diversa necessaria operativa disponitur. Optima est pro reparaturis automotivis, conservatione machinarum, et taskis domesticis generalibus.
| Magnitudo | Pollex | Longitudo | Pondus | Numerus cistularum |
| 6mm | 1/4. | 120mm | 0.048 | 10/400 |
| 7mm | 9/32. | 120mm | 0.048 | 10/400 |
| 8mm | 5/16. | 140mm | 0.05 | 10/400 |
| 9m | 11/32. | 150mm | 0.06 | 10/300 |
| 10mm | 3/8. | 160mm | 0.07 | 10/300 |
| 11mm | 7/16. | 166MM | 0.08 | 10\/250 |
| 12mm | 172MM | 0.095 | 10\/200 | |
| 13mm | 1/2. | 178mm | 0.105 | 10\/200 |
| 14mm | 9/16. | 192MM | 0.13 | 10/150 |
| 15mm | 5/8. | 200mm | 0.14 | 10/150 |
| 16mm | 210mm | 0.16 | 10/100 | |
| 17mm | 11/16. | 226mm | 0.197 | 10/100 |
| 18mm | 237MM | 0.237 | 10/100 | |
| 19mm | 3/4. | 246mm | 0.248 | 10/100 |
| 20mm | 246mm | 0.248 | 10/100 | |
| 21mm | 13/16. | 288MM | 0.349 | 10/60 |
| 22mm | 7/8. | 288MM | 0.349 | 10/60 |
| 23mm | 288MM | 0.349 | 10/60 | |
| 24mm | 15/16. | 302MM | 0.5 | 10/60 |
| 27mm | 1 - 1/16. | 348MM | 0.6 | 10\/40 |
| 30mm | 370mm | 0.8 | 10\/30 | |
| 32mm | 1 - 1\/4. | 370mm | 0.8 | 10\/30 |
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