Or, if you have a background in machine tool work, buy two sets of Grace Gunsmith turnscrews- and when needed, grind (with proper quench to preserve temper) on a fine grit wheel those you need to fit certain screws and then mark same on the handle(s) with Magic Marker, covered with transparent tape if you like. I don't usually strip down my double guns, but the trigger guard retaining screw on the Model 12's- and certain grip screws on the Colts require a "special fit"- I also make my own spanner wrench for removing the forearm front retaining ring that is threaded inside and holds the forearm in place on the Model 12, and TIG welded an extension onto a Stanley straight shanked turnscrew to remove the recessed stock mounting bolt also on the Model 12- And as all the screws on an early M70 required to dis-assemble or re-assemble the barrel/receiver group to the stock, I ground and marked Grace turnscrews for that too. RWTF
