3M surface conditioning discs, Polishing kegs

[modenacart]

I am trying to polish a keg and Lowes doesn't have the gatorgrip disk, but instead the 3M surface conditioning discs. I bought the backing pad, but there isn't enough threads on my angle grinder for both the backing pad and the surface conditioning discs. Anyone have any experience with these?

Thanks.

 

[OneHoppyGuy]

Have you removed the inner washer from the grinder?

 

[modenacart]

I don't see a washer on the shaft.

 

[Jdk261]

The backing pad should have had a "deep" threaded nut that screws down over the angle grinder. You won't be able to attach it with your "oem" grinder nut.

 

[modenacart]

It came with a nut but it was still too short. I just beat the crap out of the internal nut on the backing pad to give me more clearance. It may not be the best way to go, but it worked.