[技術] 鑽孔時鑽頭大小的選擇
小弟是機械新手 想問一個問題
假如今天我要做一個 M10的螺孔
那我要先鑽孔然後用M10的牙攻去攻牙
那再選擇鑽頭的時候
標準是什麼
我知道最基本的就是 "大小-PITCH"就是鑽頭的選擇標準
例如: M10的鑽頭選擇是 10-1.5(PITCH)=8.5
那這是為什麼可以這樣用咧....這選擇公式的標準到底是為什麼
還有假如我手邊沒有8.5的...用8.3或8.8可以嗎..
鑽頭的選擇到底如何判斷...煩請各位大大幫忙 感謝
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