Engine Turned Totanium Liners

You can use a round cratex bit in a drill press, with some valve grinding compound, or even rubbing compound, or you can use a plain round pencil eraser, if it's long enough to chuck in the press, with the compound.

Just overlap each previous one about 50% when doing it.
Brownells sells a complete kit for jeweling, with a jig and the whole nine yards, but it maybe a bit much for your application.:eek:
 
Mike said it all. You can create the circles with just about anything but the jig is the key to a good job. I have one I made about 30 years ago and a Brownells jig.......get the Brownells :D
 
I use the Brownells kit. It is a high quality spring-loaded tool with adjustable steel brushes and the proper grit size. I use my table top milling machine with the X Y table to get the precise spacing. The drill press will work with an inexpensive cross feed table just as well.
 
Hmmm, may have to check the Brownells kit out, the way I've been done it on a couple of folders is to use coarse valve lapping compound and a piece of wood dowl pin. Put the compound on the end and use the drill press to press it into the linner and basicly do as Mike said. I think I need a better way though as it's a pain to get the spacing and make it look right and you have to keep applieing the compound every fith or sixth time to keep it cutting.
 
I am here to testify that the Brownell's kit does a superior job. I have the whole cratex setup also, but the steel brushes perform much better - much more consistently than do the cratex rods. Also, the silicon carbide grits are excellent, but I also have the diamond-dust lapping pastes out of McMaster-Carr, and I love 'em!
 
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