Barrell trimmer

[dlindquist]

What do you veterans use to square the larger barrels, like the top Baron barrel, for example. The biggest barrel trimmer I could find is 10mm. Thanks.
Also, has anyone tried "gemstone", from AS? Is it any good?

 

[byounghusband]

Being the Wood Turners that we are, we make turned barrel sleeves that fit over a 7mm trimmer. I have them for all the different larger pen kits I make.... Some make them out of corian so it doesn't swell and contract depending on where you live and the season you are in, like wood can.
I mark the the kit thay are for with a Sharpie and some are usable for multiple kits....

 

[Aderhammer]

hmm well I know for the 13/32 tubes like those on the sierra i carefully center the mill inside and square it and then use a 10mm drill bit to clean out any epoxy in the inside.

 

[cdcarter]

I square it with a jig against a disc sander.

 

[marionquill]

Using the disk sander works best for me.

 

[CharlesSharp]

I just wrapped some masking tape around the 7mm arbor and used it.
However I'm new to all this also and only qualify as a veteran of Uncle Sam's yatch club.