rcのめねじ加工をしているが、チップ式工具加工したらめねじの奥側が異様に内側に入り込んでいる。何かおかしいのか？ | オーエスジー

I am processing an RC internal thread, but when I process a chip type tool, the back side of the internal thread is strangely inside. Is something wrong?

The direction of the insert attached to the holder may be reversed.

Make sure the insert surface is "R" instead of "L".

Holders with "LH" at the end of the model number are for left-hand rotary tools.

In that case, attach the insert so that the "L" is visible.

References: Tapered Threading for Pipes chip Installation Precautions