02-26-2014, 08:21 AM
It's "cold rolled" but yes I'm pretty sure it's just mild steel. TomG recommended practicing with cheap steel to get the angles and stuff down since HSS is a lot more expensive. I think he says that he uses 60 grit. The ones I was looking at have a 60 grit stone on them. TomG's video says he uses a 60 and a 100.
SnailPowered, proud to be a member of MetalworkingFun since Aug 2012.