Use either a 243 or a 270 caliber bore brush to scuff up the inside of the shaft. Then using some cotton swabs clean the inside of the shaft thoroughly with denatured alcohol until all of the carbon dust is gone. The dust will prevent you from achieving a good bond. I also clean the insert with alcohol and some people even lightly scuff the insert with fine grit sand paper. When installing your point, push the insert into the end of the shaft and slowly rotate the insert so the glue will spread evenly inside. I have been using powerbond by bohning and it works great. Hope this helps.