Still learning every day and expect to until the day I croak ... I had never heard of the Micromark flexshaft so I went to Mr Google to see what it was. It looks good. I bought a Dremel 4000 kit which includes their flex shaft but I can see the Micromark one has benefits with a foot control and all.

Those will only work with certain motors and are made for the type used in hand tools not the base mount motor like on your grinder.

I think the most important tools in your shop are your mind - eyes - hands, Tools are just an extension of these. We can get by with a lot simpler stuff if we think it out. Don't get me wrong I love tools old and new as anyone visiting my shop will see. But, I still revert back to many of my old handtools to do much of my work: forge, anvil, hammers, files and hand drills & saws. Learned to do most of my work "unplugged" from Dad and Granddad and I really like the way it feels. Might surprise you how fast and accurate you can be if you focus and let the ol' noggin make the call.

Come watch me some time and see if it ain't so.

Funny you say that Carl, just tonight I was thinking about this discussion when my wife said one of the knives was not very sharp. I went and took out my good old Smith's TriStone Arkansas stone and home made strop from an old leather belt and a piece of scrap wood I cut and sanded into a long paddle shape.

All manual of course, and I would say of all my tools, that stone and strop are used more than anything else.