We will now interrupt the regularly scheduled program for this good old Blades micro podcast. Engine turning, jeweling, or guiosh are all the same terminology for what in modern knife making we call jeweling, right? And it's it's a method for embellishing work by which you take a an abrasive and you create a circular pattern uh in on the surface of your work that gives it a uh a shimmer or um you know consistent circular finish across the entire work. And where you see that a lot is in pocket knives, especially on the inside of the liners, and it's usually uh with an abrasive medium of some sort, uh Krateks pens. Um I think guesswin also makes stones that you can do it with. Um you can do it sometimes with wire brushes um that are circular and also abrasive pads. Um the the term uh you know engine turning, it's uh very synonymous with what uh was done in the turn of the century with a bunch of uh bezels, consoles, cowling, and uh in internal pieces of um or probably more external pieces, but what you see in the interiors of cars or um automobiles and uh uh planes and things like that, it was used uh primarily to give uh a an embellishment to surfaces that otherwise were you know homogenous and dull. And uh but the the term engine turning is not actually because it was used on engines uh after the turn of the century, but because there was an engine turning tool uh somewhere in the uh 1500, 1600s that would actually perform it. And it was used a lot in things uh like uh uh doing patterns on enamels and ivories and soft metals, and then it kind of transformed into uh being used on uh jewelry and uh vases and you know other things like that, so so art pieces. Uh, you can also find it on watch movements, um guche as a you know a uh French term, and uh you can see it on the internals of watches as well. Um, I think there's also uh some uh forms of it on Fabergé eggs, at least uh uh for the historical sake, engine turning didn't start uh when you know at the advent of the uh um the uh vehicle, right? But the easiest way to accomplish jeweling is to be able to have a stabilized surface for your work. So let's just assume you're doing liners, for instance, on slip joints or liner locks or lockbacks or whatever, right? Um you have a stable surface that can remain flat, and you use something like a craytex pen and an applicator as a little uh a stylus that you put the craytex in to hold it, and then you can spin it in a drill press. And then you s you um the easiest way is to mark your lines uh so all the lines should be equidistant from each other and in a row so that you can uh you can tap down slowly uh on the craytex pen or abrasive pen and uh put your marks in it, and you can follow that line and overlap them, kind of like you know, stacking dimes uh that you kind of do in welding, right? So you're trying to overlap the circles and do it in a pattern that is straight and uniform, and those really produce the very best uh um jeweling look uh and feel, I would say. What's interesting is that it doesn't actually uh come up a whole lot in modern knife making, other than pocket knives that I see. Um I have seen some early you know uh 70s and 80s versions of it on the actual blade or bevels of blades, uh, for instance, and I think it looks pretty interesting. Um you know especially if you were to do it on the flats of your blades and leave your bevels with a uh with a you know an as ground finish or something, I think the contrast would look pretty interesting. But uh a lot of people don't really know about jeweling too much just because it's kind of obscure. I mean you're you're looking at it mostly as uh an embellishment on the inside of knives, and you don't really get a good picture of it on the outside of anywhere. So maybe uh look it up, uh jeweling, uh engine turning or guillot, uh I believe is the French term. Uh Kraytex uh pens uh or um applicators are are you know a decent medium to use for it, and you can buy the again the styluses uh to uh hold the craytex uh a bunch of different places, but try it out. I mean, I think it's a really great uh tool to embellish your work, and you might actually get some uh eyes turned towards it. I think it really deserves um a little bit of a renaissance because it is a cool um embellishment to use, and there's a lot of other uh Guiosh methods for cutting in uh circles and patterns and things like that that are more intricate, um, that I think that uh you know it might be something to look into as well. Lots of inventive ways to make that happen um and machinery to develop to do that. So uh take a look at it. Hope that helps.