a high speed cutoff wheel. I use a cabelas 8000rpm arrow cutter but you can use a dremel, just make sure it's a straight cut. Don't try to cut straight through. Cut just far enough in and then rotate the arrow for a flush cut. Use AAE fastset or another type of arrow glue for the insert. You can use super glue but I would suggest the gel, not liquid because it can dry too quickly. I've seen some use liquid super glue and it dried so fast they didn't get the insert in all the way, it was glued in with about a 1/4 inch hanging out of the arrow.