The puller is reasonably priced, seems to be of decent quality and time will better tell a full story. I have used this to pull 4 sets of seals thus far and the only modification was to replace the thumb screws with T27 screws as it is very difficult to firmly tighten them with the small thumb screws. It has worked perfectly for 2 Stihl’s, 1 Husky and an Echo top handle saw without issue. Works a lot better than drilling and putting a screw in or trying to pry them out with a screwdriver or pick!