挤压丝锥底孔直径一览表.doc

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1、挤压丝锥公制螺纹底孔直径一览表   螺纹公称尺寸M×P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.

2、399.349.41M10×19.539.489.57螺纹公称尺寸M×P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

3、.518.7318.6318.78M20×119.2819.2219.31