Normally on my bench there are is a 1/2 by 1/2 by 6 in. india stone in fine and medium grit, a 1/2 by 1/2 by 4 in. hard arkansas extra fine stone, and an assortment of Lansky diamond files and paddle stones. A couple of Spyderco's ceramic stones. I also like to use sandpaper on a sheet of thick glass, usually from 600 grit up to 2000 grit for parts with flat surfaces. I also have drawers full of various sizes and shapes of stones. And drawers full of files. I used to crawl through a lot of "gun shows" that also had a lot of machinists selling tools and measuring equipment. Those guys had files like you've never seen before. And yes, I use a Dremel but only when hogging a lot of metal off or with a Craytex rubberized abrasive tip for polishing. When stoning sears and hammers you must use a jig to hold the part and guide the stones to exact angles. You can't eyeball that kind of stuff. (You can but you'll trash a bunch of parts) One thing I learned is that no matter how much money you make working on guns you will spend it all on tools and jigs. If you want to see all this stuff order something from Brownells and ask for a catalog. It weighs more than an old Sears catalog. You'll freak when you see all the stuff they carry. Also check out Norton Abrasives website. More stones than you ever wanted to see. I also have a knife sharpening business which requires large bench stones for haoning big chef knives. I've been collecting benchstones since the 80s and have had to build and buy base cabinets full of drawers for my shop.