One of the things that you need to be careful with when you are making your own customer made golf clubs or just re-shafting your current clubs is cutting the shaft. There are a couple of things that can occur when you do this yourself.
First and foremost is to make sure that you cut the club at the right length. For a set of clubs, the length of the shaft is extended 1/2 inch per club from the 9-iron to the 2-iron. In order to accomplish this and get the correct length you must take into consideration the hosel of the club you are shafting. Some clubs take a shaft that extends almost to the hell of the club, others take the shaft only part way. This needs to be considered when you are cutting the shaft.
Secondly, depending upon what you want to accomplish and the type of shaft that is used, the shaft can be cut at either the tip end or the butt end (or both for that matter under certain conditions). Most shafts are purchased with tipping instructions that should be consulted before cutting the shaft. These instruction will tell you specifically how much to cut the tip (if at all) to get the right flexibility out of the shaft.
Thirdly, you need to right tool depending on whether you have a steel or graphite shaft. For a steel shaft, a pipe cutter works perfectly for the job. Once you determine where you want to cut the shaft, mark it with a sharpie and then use the pipe cutter by gently tightening the pipe cutter after a few revolutions around the shaft. This way, the shaft will not get bent in the process.
If you have graphite shafts, then the best way to cut the shaft is with a hack saw that has a special rod saw blade. First, however, wrap the graphite shaft with masking tape and slowly score the shaft around the shaft. Then cut slowly so the shaft does not splinter when it is cut. If the shaft splinters, then the shaft will not give the performance you expect.