"J. Clarke" wrote

This is a classic Forstner--no teeth.

Now it all makes sense.

I have always liked the type with teeth. Faster cutting, easier to turn,
and clean holes.

I would bet you could use one of those with teeth, and it would do just
fine, without having to go to an expensive carbide model.

That has been my experience, anyway. I have a couple sets with teeth. I
have one (1 1/8th, I think) without teeth. It usually goes unused.
--
Jim in NC