Jim, I will check the coarse one and get back here with the numbers. I will have to borrow one. The finer one will work nice on spruce to keep the grunt factor down.

I also discovered today that some diesel and oil mixed in a spray bottle helps with cutting the pitch buildup on the auger the chips fall off easily and was a noticeably smother, this was with a brace and bit and I now keep the big bits oiled as well. It is the same solution I use on my bands to help with rust while they set idle. Tim