So my old beat up piece of rail hade aquired alot of rust. And i thought i should fix it. Before i would use a flapdisk on the angle grind and well smooth it out a bit.. But i figure i would see what the Aciera F3 small mill could do with it. So i have this 4 carbide insert holder, surface/corner mill.. i call it a crab.. And its mounted on a modified arbor sitting in a 20mm collet. The machine was set to 1500rpm, the feed to maximum and way we went, 70% of the crabs capacity at a depth of 1mm per pass. It was sparklers flying everywhere i felt like i was standing in a furnace. But it went well. And the result was way better then my angle grinder could achieve. =)
http://www.roughedge.se/blogg/2013/03/10/rikta-upp-stadet-eller-se-vad-acieran-gar-for/