Review on 🔧 Premium ZXHAO Straight Hardened Plastic Edge - 14.5mm for Superior Durability by Ryan Sandell

I find that many drill bits don't cut very well out of the box so you should learn how to sharpen drill bits. However, I really only needed this drill to drill a hole in a pair of 12L14 bushings, so I didn't drill in the middle. For now I have drilled one as I only need one at the moment and it was drilled with very little effort. It starts out very rough, with a lot of vibration (on a lathe), but it adapts and makes a nice big chip once. you're under pressure The surface finish isn't perfect, but I think it will get better if I correct the cut edges.