In the past for one off builds, I’ve just clamped the shaft in a vice, and used my angle grinder with a cutoff wheel. As I started to build more, I picked up a mini chop saw with a cutting disc (3″ disc I believe) I got from harbor freight, trying to save a little space, but it was vastly underpowered. I just picked up a 6″ chop saw with 6″ cutting disc at Harbor freight, and it works great.. small clamp to hold the shaft while you make a nice smooth cut for either metal or graphite shafts using the cutting disc. Based only on photos, it appears to be very very similar to the 6″ chop saw I see on the GolfWorks site.