Is snáitheanna frith-sciorracha iad dromchla gearrthóg rópa sreang inúsáidte Galv.malle ar dhromchla an ghearrthóg, ar féidir leo an frithchuimilt a mhéadú go héifeachtach.
Gné de Gearrthóg Téad Sreang Able Galv.malle Din 741
Tá snáitheanna frith-skid ar dhromchla an groove gearrthóg, ar féidir leo an frithchuimilt a mhéadú go héifeachtach
Sonraíocht naGearrthóg Téad Sreang Able Galv.malle Din 741
| Méid | A | B | C | D | E | F | G |
| mm | mm | mm | mm | mm | mm | mm | mm |
| 3 | 21 | 10 | 10 | 4 | 9 | 12 | 16.6 |
| 5 | 23 | 10 | 11 | 5 | 11 | 13 | 19.65 |
| 6.5 | 26 | 11 | 12 | 5 | 13 | 15 | 23.65 |
| 8 | 30 | 15 | 14 | 6 | 16 | 19 | 28.85 |
| 10 | 34 | 17 | 18 | 8 | 19 | 22 | 35 |
| 11 | 36 | 18 | 19 | 8 | 20 | 22 | 37 |
| 13 | 40 | 21 | 23 | 10 | 24 | 30 | 46.24 |
| 14 | 44 | 22 | 23 | 10 | 25 | 30 | 48.24 |
| 16 | 50 | 26 | 26 | 12 | 29 | 33 | 52.5 |
| 19 | 54 | 30 | 29 | 12 | 32 | 38 | 64.5 |
| 22 | 61 | 34 | 33 | 14 | 37 | 44 | 72.5 |
| 26 | 65 | 37 | 35 | 14 | 41 | 45 | 82.5 |
| 30 | 74 | 43 | 37 | 16 | 48 | 50 | 95.6 |
| 34 | 80 | 50 | 42 | 16 | 52 | 55 | 105.6 |
| 40 | 88 | 55 | 45 | 16 | 58 | 60 | 125.6 |
