孔壁到圓杆邊緣距離一邊是0.033 inch,一邊是0.055 inch.
還真是,用遊標卡尺量了一下,才差了0.28 mm!公差還能再小嗎?還是用手鑽的
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孔壁到圓杆邊緣距離一邊是0.033 inch,一邊是0.055 inch.
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