I used a pipecutter on mine and i had such a hard time getting the stem back on. I realized that i needed to file the damn thing. All i had at the time was the damn file on a tiny nail clipper. You can just imagine how long it took for me to finish. I was in a hurry and really wanted to ride it the next day so i didn't bother going to the bike shop. However, with a pipe cutter AND a file, you are basically set.