Review on 💎 Powerful PHITUODA Diamond Ceramic Porcelain Granite: Unleashing Unparalleled Strength and Beauty by Larry Sabey

Very disappointing. If a slight deviation in the applied pressure puts these things into oblivion! I almost messed up the project trying to manually drill into a quartz crystal. This is the only way to pierce a small crystal. I wanted a solid shaft tool. In fact, I didn't know they would even try to make a hollow shaft. So stupid. I would have had pictures but I sent the bent drill back for a refund.