teflon coating and bolt jeweling questions?

[thelaw]

1.when having a rifle teflon coated do all the internal parts get coated, like trigger mech., inside bolt, etc? or is it just mainly the exterior?

2. i've been told that you can rejewel a bolt (rem. 700) with the use of a dowel rod and drill press. does anyone know how to do this? does it work?

[gunnut69]

As far as I've seen only the exteriors of weapons can be powder coated. there is a measureable buildup and the tolerances of the interior of a rifle or shotgun would not allow it. Hard chroming and Armoloy can do some of these areas but onlu armoloy can do them all and it's not a colored coating, producing a finish resembling stainless only much much harder..

Jeweling or engine turning cannot be done with a dowel. The surface of the bolt is round and the dowel cannot follow the rounded surface. To jewel one uses either a rubber cylinder of a small steel brush. Both are usually used with an abrasive paste.

[rob_helms]

Here is a poor man's jeweling setup. Take several wooden pencils with erasers on the end and cut them about 3 to 4 inches long from the eraser end.  Punch discs about the size of the eraser out of 320 grit wet/dry sandpaper. Superglue the discs to the eraser (grit side out) and you have a jeweling head. With a little practice you can get very good results this way. I usually make up 8 to do a bolt as they do wear down rather qickly if you use a lot of pressure.

[gunnut69]

Jeweling tools are quite cheap.  A small wire brush with an 'O'ring around the steel bristles to keep them from flaring out and a can of valve lapping compound will do many many bolts.. The expense is the holding fixture. to hold the bolt or whatever while the spot(s) are being made and incrementing the workpiece evenly as the job progresses.  A compound cise and a drill press work fine with a holding jig to rotate cylindrical objects(bolts) evenly.  These can be fairly easily homemade but the brush and abrasive are best just bought.