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H1

Torn thread problems when tapping with large size taps.

【英】困ったときの知恵袋詳細
Cutting Taps Trouble Shooting
I mainly use water soluble oil when tapping larger threads over M30 in 1018 steels but I have a problem with torn threads on the thread surface. Do you know a solution for my problem?
First, Yamawa recommends that you change the tapping fluid from water soluble oil to a straight tapping oil. Also using taps with an oxidized surface will definitely help create a good surface finish.

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