| 本表所推选钻头孔径，是针对攻牙加工时，能够很容易的了解钻头直径，而依据市售之标准钻头所选定的，在使用钻头的情况下，由于钻头的形状及尺寸，精度，被钻孔之材质等，对于所钻孔的尺寸，精度有很大影响，所以使用本表之钻孔径，若有不当之处，应实际状况适当的变更钻头直径，本表依据2级牙制订。 公 制 粗 螺 纹 规格标准径2级牙钻孔径 最大最小 M1.0×0.250.750.7850.729 M1.1×0.250.850.8850.829 M1.2×0.250.950.9850.929 M1.4×0.31.101.1421.075 M1.6×0.351.251.3211.221 M1.7×0.351.351.4211.321 M1.8×0.351.451.5211.421 M2.0×0.41.601.6791.567 M2.2×0.451.751.8381.713 M2.3×0.41.901.9791.867 M2.5×0.452.102.1382.013 M2.6×0.452.202.2382.113 M3.0×0.52.502.5992.459 M3.0×0.62.402.442.280 M3.5×0.62.903.0102.850 M4.0×0.73.303.4223.242 M4.0×0.753.253.3263.106 M4.5×0.753.803.8783.688 M5.0×0.84.204.3344.134 M5.0×0.94.104.1703.930 M6.0×1.05.005.1534.917 M7.0×1.06.006.1535.917 M8.0×1.256.806.9126.647 M9.0×1.257.807.9127.647 M10×1.58.508.6768.376 M11×1.59.509.6769.376 M12×1.7510.3010.44110.106 M14×2.012.0012.21011.735 M16×2.014.0014.21013.835 M18×2.515.5015.74415.294 M20×2.517.5017.74417.294 M22×2.519.5019.74419.294 M24×3.021.0021.2522.752 M27×3.024.0024.25223.752 M30×3.526.5026.77126.211 公 制 细 螺 纹 规格标准径2级牙钻孔径 最大最小 M1.0×0.20.800.8210.783 M1.1×0.20.900.9210.883 M1.2×0.21.001.0210.983 M1.4×0.21.201.2210.183 M1.6×0.21.401.4211.383 M1.7×0.21.451.5001.460 M1.8×0.21.601.6211.583 M2.0×0.251.751.7851.729 M2.2×0.251.951.9851.929 M2.3×0.252.052.0612.001 M2.5×0.352.202.2212.121 M2.6×0.352.202.2462.186 M3.0×0.352.702.7212.621 M3.5×0.353.203.2213.121 M4.0×0.53.503.5993.459 M4.5×0.54.004.0993.959 M5×0.54.504.5994.459 M5.5×0.55.005.0994.959 M6.0×0.755.305.3785.188 M6.0×0.55.505.5505.400 M7.0×0.756.306.37861.88 M7.0×0.56.506.55064.00 M8.0×1.07.007.1536.917 M8.0×0.757.307.3787.188 M8×0.57.507.5207.400 M9×1.08.008.1537.917 M9×0.758.308.3788.188 M10×1.258.808.9128.647 M10×1.09.009.1538.917 M10×0.759.309.3789.188 M10×0.59.509.5209.400 M11×1.010.0010.1539.917 M11×0.7510.3010.37810.188 M11×1.510.5010.67610.376 M12×1.2510.8010.91210.647 公 制 细 螺 纹 规格标准径2级牙钻孔径 最大最小 M12×1.011.0011.15310.917 M12×0.511.5011.52011.4 M14×1.512.5012.67612.376 M14×1.013.0013.15312.917 M15×1.513.5013.67613.376 M15×1.014.0014.15313.917 M16×1.514.5014.67614.376 M16×1.015.0015.15314.917 M17×1.515.5015.67615.376 M17×1.016.0016.15315.917 M18×2.016.0016.21015.835 M18×1.516.5016.67016.376 M18×1.017.0017.15316.917 M20×2.018.0018.21017.835 M20×1.518.5018.67618.376 M20×1.019.0019.15318.917 M20×2.020.0020.21019.835 M22×1.520.5020.67620.376 M22×1.021.0021.15320.917 M24×2.022.0022.21021.835 M24×1.522.5022.67622.376 M24×1.023.0023.15322.917 M25×2.023.0023.21022.835 M25×1.523.5023.67623.376 M25×1.024.0024.15323.917 M26×1.524.5024.67624.376 M27×2.025.0025.21024.835 M27×1.525.5025.67625.376 M27×1.026.0026.15325.917 M28×2.026.0026.21025.835 M28×1.526.5026.67626.376 M28×1.027.0027.15326.917 M30×3.027.0027.25226.752 M30×2.028.0028.21027.835 M30×1.528.5028.67628.376 M30×1.029.0029.15328.917 M32×2.030.0030.21029.835 M32×1.530.5030.67630.376 M33×3.030.0030.25229.752 M33×2.031.0031.21030.835 M33×1.531.5031.37631.376 M35×1.533.5033.67633.376 M36×3.033.0033.25232.752 M36×2.034.0034.21033.835 M36×1.534.5034.67634.376 美 制 细 螺 纹 规格(UNF)标准径2级牙钻孔径 最大最小 番数牙外径 NO.0-80(1.524)1.251.3051.182 NO.1-72(1.854)1.551.6121.474 NO.2-64(2.184)1.851.9121.756 NO.3-56(2.515)2.102.1972.025 NO.4-48(2.845)2.402.4582.271 NO.5-44(3.175)2.702.7402.551 NO.6-40(3.505)2.903.0222.820 NO.8-36(4.166)3.503.6063.404 NO.10-32(4.826)4.104.1653.963 NO.12-28(5.846)4.604.7244.496 1/4 -285.505.5885.360 5/16 -246.907.0356.782 3/8 -248.508.6368.382 7/16 -209.9010.0339.729 1/2 -2011.5011.60711.329 9/16 -1812.9013.08112.751 5/8 -1814.5014.68114.351 3/4 -1617.5014.67817.323 7/8 -1420.5020.67520.270 1 -1223.2023.57123.114 1-1/8 -1226.5026.74626.289 1-1/4 -1229.5029.92129.464 1-3/8 -1232.8033.09632.464 1-1/2 -1236.0036.27035.814 无 屑 丝 攻 钻 孔 径 规格精度等级 RH4.5.6RH7.8RH9 M1.0×0.250.860.88- M1.1×0.250.960.98- M1.2×0.251.061.08- M1.4×0.31.241.25- M1.6×0.351.411.43- M1.7×0.351.511.53- M1.8×0.351.611.63- M2.0×0.41.781.80- M2.2×0.451.951.98- M2.3×0.42.082.10- M2.5×0.452.252.28- M2.6×0.452.351.38- M3.0×0.52.732.75- M3.0×0.63.173.20- M4.0×0.73.623.653.69 M5.0×0.84.564.604.64 M6.0×1.05.455.505.55 M7.0×1.06.456.506.55 M8.0×1.257.317.387.44 M10×1.59.189.259.32 M10×1.259.319.389.44 M12×1.7511.0411.1211.21 M12×1.2511.3111.3811.44 注:无槽丝攻之钻孔径,在上表所列之数值,由于被加工材料之材质、硬度、形状、尺寸等之影响,多少会有所变动，因此参考上表之同时,亦请增减若干. 美 制 管 螺 纹 规格(UNEF)标准径2级牙钻孔径 最大最小 NO.12 -324.704.8264.623 1/4 -325.605.6905.486 5/16 -327.107.2647.087 3/8 -328.708.8658.661 7/16 -2810.2010.33810.135 1/2 -2811.8011.93811.709 9/16 -2813.2013.38613.132 5/8 -2414.8014.98614.732 3/4 -2017.8017.95817.678 7/8 -2021.0021.13320.853 1 -2024.0024.30824.028 美 制 粗 螺 纹 规格(UNC)标准径2级牙钻孔径 番数牙外径最大最小 NO.1-64(1.854)1.551.5821.425 NO.2-56(2.184)1.801.8711.695 NO.3-48(2.515)2.102.1461.941 NO.4-40(2.845)2.302.3852.157 NO.5-40(3.175)2.602.6972.487 NO.6-32(3.505)2.802.8952.642 NO.8-32(4.166)3.403.5303.302 NO.10-24(4.826)3.903.9623.682 NO.12-24(5.846)4.504.5974.344 1/4 -205.105.2574.979 5/16 -186.606.7316.401 3/8 -168.008.1537.987 7/16 -149.409.5009.144 1/2 -1310.8011.02310.592 9/16 -1212.2012.44611.989 5/8 -1113.6012.86813.386 3/4 -1016.2016.84016.307 7/8 -919.5019.76119.177 1 -822.2022.60621.971 1-1/8 -725.0025.34924.638 1-1/4 -728.2028.52427.813 1-3/8 -630.8031.11530.353 1-1/2 -634.0034.29033.528 1-3/4 -539.5039.82738.964 2 -4-1/245.2045.59344.679 英 制 螺 纹 规格钻孔径 硬材软材 W1/8 - 402.652.60 W5/32 - 323.253.20 W3/16 - 243.753.70 W1/4 - 205.105.00 W5/16 - 186.606.50 W3/8 - 168.007.90 W7/16 - 149.409.30 W1/2 - 1210.7010.50 W9/16 - 1212.3012.00 W5/8 - 1113.7013.50 W3/4 - 1016.7016.50 W7/8 - 919.5019.30 W1 - 822.4022.00 W1-1/8 - 725.0024.80 W1-1/4 - 728.3028.00 英 制 管 螺 纹 规格标准径钻 孔 径 最大最小 PS1/16 -286.506.6326.490 PS1/8 -288.508.6378.495 PS1/4 - 1911.4011.54911.341 PS3/8 - 1915.0015.05414.846 PS1/2 - 1418.5018.77318.489 PS3/4 - 1424.0024.25923.975 PS1 - 1130.2030.47130.111 PS1-1/4 -1138.8039.13238.772 PS1-1/2 -1144.8045.02544.665 PS2 - 1156.5056.83656.476 英 制 管 螺 纹 规格标准径有效牙部之长度(最小)中之母螺牙内径标准长度(最小)中之母螺牙内径 使用绞刀时不用绞刀时 PT1/16 -286.106.26.2446.384 PT1/8 -288.108.28.2498.388 PT1/4 -1910.701110.96211.174 PT3/8 -1914.2014.514.44814.658 PT1/2 -1417.601817.97918.263 PT3/4 -1423.0023.523.37823.663 Pt1 -1129.0029.529.45929.822 PT1-1/4 -1137.503837.97638.339 PT1-1/2 -1143.404443.86944.232 Pt2 -1154.9055.555.41255.844 美 制 螺 纹 滚 造 径 规格钻孔径 NPTNPS 使用绞刀时不用绞刀时 1/16 -276.16.256.35 1/8 -278.338.438.74 1/4 -1810.7211.1311.13 3/8 -1814.2714.2714.68 1/2 -1417.4817.8618.26 3/4 -1422.6323.0123.42 1 -11-1/228.5828.9829.36 1-1/4-11-1/237.3137.6938.1 1-1/2-11-1/243.6644.0444.45 2 -11-1/255.5855.9656.36 英 制 螺 纹 滚 造 径 规格滚造径 W 3/16 - 244.08 - 4.05 W 1/4 - 205.51 - 5.46 W 5/16 - 187.01 - 6.95 W 3/8 - 168.48 - 8.41 W 7/16 - 149.92 - 9.85 W 1/2 - 1211.31 - 11.24 W 9/16 -1212.89 - 12.82 公 制 螺 纹 规格滚造径 M3.0×0.52.63 2.60 M3.0×0.62.56 2.53 M3.5×0.63.06 3.03 M4.0×0.73.49 3.45 M4.0×0.753.45 3.41 M4.5×0.753.96 3.92 M5.0×0.84.43 4.38 M5.0×0.94.36 4.31 M6.0×1.05.30 5.25 M7.0×1.06.30 6.25 M8.0×1.07.28 - 7.23 M8.0×1.257.12 - 7.07 M9.0×1.258.12 - 8.07 M10×1.259.10 - 9.04 M10×1.58.97 - 8.91 M11×1.59.97 - 9.91 M12×1.510.92 - 10.87 M12×1.7510.79 - 10.73 M14×2.012.63 - 12.56 M16×2.014.63 - 14.56 M18×2.516.31 - 16.23 M20×2.518.31 - 18.23 M22×2.520.31 - 20.23 针 车 用 螺 纹 规格(UNC)滚造径 SM 1/8 402.735 -2.688 SM 1/8 442.769 -2.722 SM 9/64 403.128 -3.083 SM 11/64 403.855 -3.805 SM 3/16 324.205 -4.155 SM 3/16 284.143 -4.093 SM 7/32 325.003 -4.955 SM 15/64 285.325 -4.955 SM 1/4 405.890 -5.735 SM 1/4 285.721 -5.366 SM 9/32 286.528 -6.648 SM 11/32 288.092 -8.432 SM 3/8 298.880 -8.015 SM 7/16 3010.466 -10.401 SM 7/16 1610.037 -9.967 SM 1/2 2011.819 -11.749 SM 9/16 2013.400 -13.425 美 制 粗 螺 纹 规格(UNC)滚造径 NO.5-402.70 - 2.67 NO.6-322.95 - 2.91 NO.8-323.60 - 3.57 NO.10-244.09 - 4.05 NO.12-244.75 - 4.70 1/4 -205.50 - 5.45 5/16 -186.98 - 6.93 3/8 -168.45 - 8.40 7/16 -149.89 - 9.83 1/2 -1311.39 - 11.32 9/16 -1212.87 - 12.80 美 制 细 螺 纹 规格(UNF)滚造径 NO.5-442.73 - 2.70 NO.6-403.05 - 3.02 NO.8-363.66 - 3.63 NO.10-324.26 - 4.80 NO.12-284.84 - 4.80 1/4 -285.72 - 5.68 5/16 -247.20 - 7.16 3/8 -248.79 - 8.74 7/16 -2010.23 - 10.18 1/2 -2011.82 - 11.76 《刀具界》杂志2017年出版10期。 2017年全国参展各相关展会！ 发行量：12000份/期+展会3000份/期 2016年创刊号广告截止：11月10日 发行对象：切削刀具用户企业专业人士， 金属加工领域刀具应用方面的工艺、 设计、采购、生产、质量、 技术等相关负责人； 切削刀具生产制造企总经理， 生产、设计、采购等相关负责人。 |
|
|
