I'd like to try my hand at metal checkering and need some advice. I plan to practice on some small scrap rifle parts to learn and eventually if confident enough actually checker bolt releases and bolt handle knobs. I'd like to start out with one metal checkering file and I am looking for advice on which LPI to go with? Second question is that I am looking for someone who can case color a Winchester bolt action cocking piece? Way beyond my learning horizon for now.