The angle grinder is fine. Get a milk jug, fill it full of water, and poke a hole at the bottom to get a little stream coming out. Hold the rod in the stream and cut it wet, or at least cut it for a second, then quench a second, and repeat. The grinder will cut it just fine, but it'll get hot, and you want to avoid that.
BScatterplot t1_isbwnbq wrote
Reply to Trimming hardened linear shafts by Patex_
The angle grinder is fine. Get a milk jug, fill it full of water, and poke a hole at the bottom to get a little stream coming out. Hold the rod in the stream and cut it wet, or at least cut it for a second, then quench a second, and repeat. The grinder will cut it just fine, but it'll get hot, and you want to avoid that.