I was looking for drill bits and settled on the Ivy Classic and Wood Owl. I personally thought that a wooden owl would work better in a simple way because it has 3 cutting faces, of which the classic IVY has one. Start as you can see. Also, the IVY hole was easier to drill with my spacer. I made some holes as I was surprised Wood Owl didn't outperform IVY, 3 cutting faces popped up in my mind again. Maybe Wood Owl is better with a drill? Anyway, I like this auger! Both drill bits were 3/4" by 7 1/2".