Originally Posted by
bowcycle
I like using the small, screw-attached cut-off wheels. I usually double stack those when working in tight places. The EZ wheels are HUGE and pretty much only useful for making flat cuts.
After that, go with the sanding wheels to smooth everything out and take out that last bit of stuff. and then go with a hand file to get the corners smoothed out where the fins of the FS fit. I use a chainsaw round file for that part, but I have plenty of those around.
remember that the back of the current hole is where the flat, back part of the FS feed hole is going to be. Don't let the feed wander backward as you're removing material.