Adjust your club if its length isn't right.
Changing your golf club's length also changes the club's playing characteristics -- which is the reason golfers decide to shorten or lengthen a club. On the other hand, maybe you received a driver as a gift that's a bit too long, or you found an otherwise perfect wedge at a garage sale that doesn't quite fit. Depending on your plan for the club, you have several options for adjusting its length.
Lengthening a club gives you a longer swing and, potentially, a faster swing speed. The increased speed will translate into more distance if you hit the ball squarely. But the added weight may cost you some control and make it more difficult to hit the club's sweet spot. Longer shafts also become more flexible. If you trim the club from its butt end you'll also increase the shaft's flexibility, because the narrower, more flexible portion now makes up a greater percentage of the shaft's overall length. By the same logic, trimming the tip makes a shaft stiffer, but the club's most flexible area is reduced.
Trim the Shaft
After you've decided to trim the shaft, consider whether to trim the tip or the butt end. Remove the grip with a blade if you're cutting from the butt end. Use a hooked blade on a graphite club to avoid damaging the shaft. To trim from the tip, heat the ferrule with a heat gun to loosen the glue, then cut the ferrule off the shaft. Use a shaft extracting machine to remove the clubhead. Heat the hosel to melt the glue before pulling off the clubhead. Trim a graphite or steel shaft using a hacksaw, cutoff wheel or chop saw. You can also use a tubing cutter on a steel shaft. Put a new grip on the club if you've trimmed from the butt end. If you cut the tip, glue a new ferrule onto the shaft, abrade the tip a bit, then use epoxy to re-attach the clubhead.
Lengthen a Club
Extend your steel or composite shaft up to 2 inches by adding a piece onto the butt end of your club. Use the same material from which the shaft is made -- use a graphite extension piece for a graphite shaft, for example. You can buy extension pieces or cut one yourself from an old shaft, using the same cutting techniques that you did for trimming a shaft from the butt end. Use sandpaper to lightly abrade the edge of the extension piece that will attach to the new shaft, then apply epoxy glue to fasten the piece to the shaft. Place a new grip on the shaft after the epoxy dries.
Install a New Shaft
To avoid cutting the shaft or adding an attachment, purchase a new shaft at your desired length. Cut the ferrule and remove the clubhead from the old shaft as you did before trimming the tip. If you wish to keep the original grip, use an air compressor to separate it from the old shaft, then pull the grip off. Use epoxy to glue a new ferrule and the old clubhead onto the new shaft. Wrap grip tape around the new shaft's butt end, pour mineral spirits over the tape and slide on the new grip, or the old grip you removed from the original shaft.