Shove it in and bang it until you get it out. I have no idea how to use the "multi-tool" part. However, I had a squib once and I shoved this into the end of my barrel and banged it against the table until that lil b*stard came out. Worked great except I marred up the round-ish end. I had a second squib did the same thing and it worked again. Gets the squib out!