It works.  update this works well!
I live an hour from the nearest place where I can get a tip replaced and with this little gadget I am able to do it myself.  The first time  installing a new tip took some time but I got it right.  I am using this on my Predator 314 and Z3 S tuned shafts and its comes out right every time.  With care  it gets quicker and easier each time as well.  I had my son clean up the mushroomed tip on his Predaror tip and he liked it too!
Rating: 5 stars