Armour Making Tutorial - How to roll the edges of armour
Sanding and Finishing
After the rolled edge is fully formed on the armour I clean it up using some medium grit sandpaper. 200 to 400 grit wet or dry sandpaper works fairly well. I had run out of wet or dry paper when I took these photos so I used sandpaper intended for wood... Just to clarify why I am once again pictured not following my own advice LOL!
Hand sanding steel may seem like a futile effort but, when it comes to rolled edges, this only takes a few minutes and isn't hard at all. It does make the roll look much better because it removes many of the facets that are left by the hammer during forming. After sanding, the armour can then be polished with a buffer.
Page 10 - Metal Forming Concepts.