I use a nail punch to flare the ends of the brass tubing. I buy the stuff dirt cheap at Ace Hardware. It's an easy way to make homemade glue-on tips (I attach them with Bohning's hot melt.) The blunts and judo can both be removed. Also, I've made some broadheads like the one shown that are removable. Also, it's adds weight to my homemade heads, as they and my arrow shafts tend to be a bit light. Thanks for looking!