I just came across this: Tricks of the Gunsmithing Trade. Short articles on:
The ultimate file cleaner | Vise pads | Powdered rosin | Repairing screw slots | Making a hand vise | Lengthening coil springs | Allen hex screws the easy way
Stuart
The ultimate file cleaner | Vise pads | Powdered rosin | Repairing screw slots | Making a hand vise | Lengthening coil springs | Allen hex screws the easy way