Drive shaft cutback

I've been surprised that I haven't found more information online about how people cut back their drive shafts. After a call, I think I know why - it is simpler than I thought to cut hardened steel. I was just told by a machinist that an angle grinder w/ an 1/8" cutting blade on it would be sufficient to cut back an 3/4" diameter drive shaft. Since I've a friend giving me an angle grinder in 1 1/2 weeks (he got a 2 for 1 deal w/ a Makita grinder), I think I'll try that route.