钻头标准规格(3)

英制管螺纹 规格 标准径 钻孔径 最大 最小

PS1\16-28 6.5 6.632 6.49 PS1\8-28 8.5 8.687 8.495 Ps1\4-19 11.4 11.549 11.341 PS3\8-19 15 15.054 14.846 PS1\2-14 18.5 18.733 18.489 PS3\4-14 24 24.259 23.975 PS1\4-11 30.2 30.471 30.111 PS1-1\4-11 38.8 39.132 38.772 PS1-1\2-11 44.8 45.025 44.665 PS2-1\2-11 56.5 56.836 56.476

英制管螺纹

规格 标准径 有效牙部之长 标准长度之

使用铰刀时 不用铰刀时 度中螺牙内径 螺牙内 径 PT1\16-28 6.1 6.2 6.244 6.384 PT1\8-28 8.1 8 8.249 8.388 PT1\4-19 10.7 11 10.962 11.174 PT3\8-19 14.2 14.5 14.448 14.685 PT1\2-14 17.6 13 17.979 18.263 PT3\4-14 23 23.5 23.378 23.663 PT1\4-11 29 29.5 29.459 29.822 PT1-1\4-11 37.5 38 37.976 38.339 PT1-1\2-11 43.4 44 43.869 44.232

PT2-2-11 54.9 55.5 55.412 55.844