I'm making a unversal holder for tools bits and drills for use on a t&c grinder. The pieces are welded fabrications such as..... (pardon the ugly stick welds)



finished product will be along the lines of ....



the v block has split cotters holding drill ends stops and micrometer tooth rest etc...more photo when its done

anyway, the question is what should i do to stablize this weldments? normalize, stress relieve, etc AND can I do any of this at home (I've O/A & propane torches) or should i send them out?