Plus 1 on the Kimsha..... I use a big 300 gr field point as a handle.... lightly screw the insert on the point, heat the glue slug, wipe a small smear of hot glue on the insert, touch that to the flame again briefly then into the shaft and a quick turn, wipe the excess. To remove an insert, I screw in that point, lightly heat the point so the heat transfers to the insert, all while maintaining a little pulling pressure so the insert will come out the instant the glue is soft enough to let it. I never get the carbon hot this way (it experiences minimal heat with never any contact with the flame)