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No. Itz a centering drillbit. Drills a tiny hole then follows that up with a larger hole. Helps in getting center.

I know by now you have read a lot on removing pins, but here is my way.

1. Put 2 layers of blue tape covering the pin and the scale end to protect it.
2. Use a Needle file and flatten the top of...

The Ivy looks nice. Just go easy and try not to pry on them to seporate. That is usually the biggest mistake made when removing scales.