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| 米厘牙規格 | |||||
| 號稱 | 牙距 | 外徑 | 滾牙前 有效徑 | ||
| 最大 | 最小 | 最大 | 最小 | ||
| 1.4 | 0.3 | 1.38 | 1.32 | 1.185 | 1.135 |
| 1.6 | 0.35 | 1.581 | 1.496 | 1.354 | 1.291 |
| 1.7 | 0.35 | 1.68 | 1.61 | 1.453 | 1.393 |
| 2 | 0.4 | 1.98 | 1.89 | 1.720 | 1.660 |
| 2.3 | 0.4 | 2.28 | 2.19 | 2.020 | 1.960 |
| 2.6 | 0.45 | 2.58 | 2.48 | 2.288 | 2.218 |
| 3 | 0.5 | 2.98 | 2.874 | 2.655 | 2.580 |
| 3 | 0.6 | 2.98 | 2.87 | 2.590 | 2.510 |
| 3.5 | 0.6 | 3.47 | 3.36 | 3.080 | 3.010 |
| 4 | 0.7 | 3.978 | 3.838 | 3.523 | 3.433 |
| 4 | 0.75 | 3.978 | 3.838 | 3.491 | 3.388 |
| 4.5 | 0.75 | 4.47 | 4.34 | 3.983 | 3.893 |
| 5 | 0.8 | 4.976 | 4.826 | 4.456 | 4.361 |
| 5 | 0.9 | 4.97 | 4.82 | 4.385 | 4.280 |
| 6 | 1 | 5.97 | 5.82 | 5.320 | 5.220 |
| 7 | 1 | 6.97 | 6.82 | 6.320 | 6.220 |
| 8 | 1.25 | 7.96 | 7.79 | 7.148 | 7.038 |
| 10 | 1.25 | 9.96 | 9.79 | 9.148 | 9.038 |
| 10 | 1.5 | 9.96 | 9.77 | 8.986 | 8.866 |
| 12 | 1.5 | 11.96 | 11.77 | 10.994 | 10.860 |
| 12 | 1.75 | 11.95 | 11.76 | 10.813 | 10.683 |
| 14 | 2 | 13.95 | 13.74 | 12.651 | 12.511 |
| 16 | 2 | 15.95 | 15.74 | 14.650 | 14.511 |
| 20 | 2.5 | - | - | 18.230 | 18.300 |
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| 美國細牙規格 | |||||
| 號稱 | 牙數 | 外徑 | 有效徑 | ||
| 最大 | 最小 | 最大 | 最小 | ||
| NO:0 | 80 | 1.511 | 1.43 | 1.306 | 1.26 |
| NO:1 | 72 | 1.839 | 1.75 | 1.61 | 1.562 |
| NO:2 | 64 | 2.169 | 2.073 | 1.913 | 1.862 |
| NO:3 | 56 | 2.497 | 2.393 | 2.202 | 2.146 |
| NO:4 | 48 | 2.827 | 2.713 | 2.424 | 2.423 |
| NO:5 | 44 | 3.157 | 3.035 | 2.781 | 2.718 |
| NO:6 | 40 | 3.485 | 3.355 | 3.073 | 3.007 |
| NO:8 | 36 | 4.145 | 4.006 | 3.688 | 3.617 |
| NO:10 | 32 | 4.803 | 4.651 | 4.288 | 4.211 |
| NO:12 | 28 | 5.461 | 5.296 | 4.872 | 4.79 |
| 1/4" | 28 | 6.325 | 6.16 | 5.735 | 5.652 |
| 5/16" | 24 | 7.91 | 7.727 | 7.211 | 7.127 |
| 3/8" | 24 | 9.497 | 9.314 | 8.809 | 8.712 |
| 7/16" | 20 | 11.079 | 10.874 | 10.254 | 10.147 |
| 1/2" | 20 | 12.667 | 12.461 | 11.841 | 11.732 |
| 9/16" | 18 | 14.252 | 14.031 | 13.335 | 13.221 |
| 5/8" | 18 | 15.839 | 15.618 | 14.922 | 14.803 |
| 3/4" | 16 | 19.012 | 18.773 | 17.981 | 17.854 |
| 7/8" | 14 | 22.184 | 21.923 | 21.006 | 20.869 |
| 1" | 12 | 25.354 | 25.065 | 23.98 | 23.83 |
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| 美國粗牙規格 | |||||
| 號稱 | 牙數 | 外徑 | 有效徑 | ||
| 最大 | 最小 | 最大 | 最小 | ||
| NO:1 | 64 | 1.839 | 1.742 | 1.598 | 1.56 |
| NO:2 | 56 | 2.169 | 2.065 | 1.875 | 1.821 |
| NO:3 | 48 | 2.497 | 2.383 | 2.154 | 2.096 |
| NO:4 | 40 | 2.824 | 2.695 | 2.413 | 2.35 |
| NO:5 | 40 | 3.155 | 3.025 | 2.743 | 2.667 |
| NO:6 | 32 | 3.485 | 3.332 | 2.969 | 2.898 |
| NO:8 | 32 | 4.143 | 3.99 | 3.627 | 3.553 |
| NO:10 | 24 | 4.801 | 4.618 | 4.112 | 4.028 |
| NO:12 | 24 | 5.461 | 5.278 | 4.773 | 4.686 |
| 1/4" | 20 | 6.322 | 6.116 | 5.497 | 5.403 |
| 5/16" | 18 | 7.907 | 7.686 | 6.99 | 6.888 |
| 3/8" | 16 | 9.492 | 9.253 | 8.461 | 8.349 |
| 7/16" | 14 | 11.077 | 10.815 | 9.898 | 9.779 |
| 1/2" | 13 | 12.662 | 12.385 | 11.392 | 11.265 |
| 9/16" | 12 | 14.247 | 13.957 | 12.873 | 12.741 |
| 5/8" | 11 | 15.834 | 15.527 | 14.336 | 14.196 |
| 3/4" | 10 | 19.004 | 18.677 | 17.353 | 17.203 |
| 7/8" | 9 | 22.177 | 21.824 | 20.343 | 20.183 |
| 1" | 8 | 25.349 | 24.968 | 23.287 | 23.114 |
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