I just repair a tire in which a tip was lodged. Regarding tooling quality is not at the rendezvous. After reading several reviews, so I started by enlarging the hole with my drill and concrete bit of 5. Then, after taking off from the package putty bit (they hold well to plastic) I used the tool provided for this purpose. It must be supported right otherwise I think the tool will bend double. After removing it, I have cut the excess of the wick until the next day. The audit suggests to me that the repair is good. To conclude the kit is useful for locks and glue. I did a repair for 7 euros which is interesting, and I think I can do another tire with the rest of glue. The tube empties quickly.