Review on 🐏 Big Horn 4 Inch Self Centering (Model 19138) by Lakeem Pickel

I have had several of these shelf pin bits. It has a couple of pluses and one big but fixable minus. Bad news first: when I started using it, the racquet fell apart. I tightened the Allen screw and after a few holes it fell apart again. This time small pieces scattered on the floor and the quill fell into my magazine. Once I had all the pieces together and thinking how lucky I was that I had swept the floor the day before, I took a closer look at the bridle to see why it was falling apart. The problem is that the drill shank didn't have a flat. So I sanded the flat, assembled it and started drilling a few hundred bolt holes. Not only did the drill work flawlessly, the guide rotated freely which reduced wear on the jig, and swarf evacuated better than previous ones I've had.