Reaming Chambers

[Phenix]

I have been loaned a chamber reaming and polishing tool for .22 LR revolver chambers.
Is it okay to use it on chambers in an aluminum cylinder?
I ask because I do not know whether or not the chambers in aluminum cylinders have some kind of hard, clear, transparent coating to retard corrosion and wear in the softer metal as compared to steel.

 

[alwslate]

I had a S&W model 317 for a while. Very lightweight , Aluminum frame and cyl. I wondered about wear in the cyl chambers but didn't see any in several hundred rounds of ammo. Chambers were very smooth and I feel sure that they were hard anodized to eliminate wear from the .22 ammo cases and bullets. I would not use a reamer on those chambers.

 

[chief38]

Why not call the Reamer manufacturer as ask them. I am not really familiar with working on Aluminum but calling the revolver manufacturer as well might be worth the effort. Between the two of them you might get some direction.