I have made many fixes blades and modified frame locks, but I have never built a slipjoint folder. Here are the beginnings: 1084 steel as that is what I can effectively heat treat in house. Linen micarta will form both the liner and the scales. Here the profile has been sanded on the blade and back spring. Holes have been drilled and reamed. Nail nick cut in with aid of a grinding jig and a Dremel cut off disk. Blade stamped, sanded, and ready for heat treat. Test run.