Oil for ball hones and technique for honing?

[Silverbullet]

I think they offer them in different grits , if there used in increasing finer grits the will enlarge the boring up to the final polish . Not as much as a stone hone but with better finishes. I use to polish and lengthen forcing cones in shotgun barrels , used eds red and it worked really well.

 

[Tony Wells]

Oh yes, real hones can remove material. One shop where we did honing we regularly left 0.010 for finish, and ended up holding 0.001 tolerance with a 2 µ Ra finish in parts about < .050 wall, Incolloy around 3" ID x 18" long, plus many smaller ones. Best results we got were on hones we built in house. Those were hydraulic cylinders used in MOPS downhole.

 

[kd4gij]

For boring bar bushings no need to hone they should be split any ways.

 

[Alan H.]

The hones were received this afternoon from McMaster:


I put them to work and they worked quite well and faster than I expected. I made a batch of honing oil as discussed above and used the hones in a drill:


The finished bushings work fine and as expected. Had fun experimenting with the hones.:

 

[mikey]

I'm with you, Alan. The simplest way would have been to bore, then ream, then split the bushing but a hone will give a good finish and that's what you're after. Fine finishes in the bore will reduce chatter so good for you!