So, I was barn looking the other day, found a tool steel scissor jack bar. 2 sections, I want to make a spring fuller out of them, is 3/8 big enough? Also, I bought some mild grade 1/2 round stock and want to make some bolt head tongs, unfortunatly, all the plans I find are for making with 1'' by 1/4'' flat, is there an easier way so I am not out there pounding away trying to achieve them. Keep in mind I am a directions junkie.