Not super important and I'll eventually find out, but the ZX50C machine I'm looking to get to replace my old RF is listed as "5 speed" but when I look at it the gearbox had a high/low lever and a 1-2-3 lever.??

What happened to speed 6?

Maybe it's a secret?Ludicrous Speed where it turns so fast time flips inside out?

Maybe on speed 6 the cutter doesn't turn but the entire mill does?

Maybe I've been in the shop milling this box full of brackets for a client a bit too long?