Has anyone ever seen a 4" countersink bit? Or does anyone have an idea of how I could drill a cone shaped hole in MDF with either the larger or smaller diameter being 4". I could drill a 3.5" hole and then run a chamfer bit around the hole. But I was hoping there was a one step bit.
A 4" countersink bit would be an enormous amount of torque. The way I’d do it (with the tools I have) would be a 3.5" hole saw in a drill press or hand drill, then a chamfer bit in a router. You doing a lot of these?
2 Likes
Probably about 12 so not too bad. It would just be nice to be able to do it in one step. But I also need to order a lower angle chamfer bit. The standard 45 degree won’t work. I want a steeper sidewall to the cone.