Ceramic steel between sharpenings: I have a Chicago Cutlery brand, I'd guess 12" long. Been using it for maybe 25 or 30 years now, and it works very well between sharpening. Sharpening I use oil or wet stones of various types (depends upon whether knife is SS or CS. BUT, important to clean...
I have several "Sabatier" kitchen knives, most are manufactured by Thiers-Issard****elephant logo-France and are stainless steel, full tang, black handle, three rivets. Mother in Law (age 90) dropped one knife on wood floor and, (surprise) the blade broke about 1/2 in forward of tang...
Re: Pine grips on pistol or similar, including furniture: I like to use oil-based good quality polyurethane (like a varnish). Multiple coats to build mil thickness of base, wet sanded between each coat until satisfied with buildup thickness of finish. Oil-base will build satisfactory mil...