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精选优质文档-倾情为你奉上挤压丝锥公制螺纹底孔直径一览表 螺纹公称尺寸 MP推荐 钻头直径 D最小直径最大直径M2 0.41.831.811.85M2.2 0.452.001.982.03M2.5 0.452.302.282.33M3 0.52.782.762.81M4 0.73.683.653.70M5 0.84.634.594.66M6 15.535.485.57M7 16.536.486.57M8 1.257.397.347.41M8 17.537.487.57M10 1.59.249.189.28M10 1.259.399.349.41M10 19.539.489.57螺纹公称尺寸 MP推荐 钻头直径 D最小直径最大直径M12 1.7511.1211.0511.15M12 1.511.2411.1811.28M12 1.2511.3911.3411.41M14 213.0012.9213.04M14 1.513.2713.2113.30M16 215.0014.9215.04M16 1.515.2715.2115.30M18 2.516.7316.6316.78M18 1.517.2817.2217.31M20 2.518.7318.6318.78M20 119.2819.2219.31专心-专注-专业