I posted several days ago wondering how to cut the top out of my British keg (with a strangely-shaped non-circular collar that wouldn't come off).
I finally figured out what I think is the best way, and it worked perfectly.
I just moved my 4" angle grinder's guard into a position where it would contact the inside rim of the keg in two places, as I moved the grinder around the inside perimeter of the keg. [Edit: My grinder also has a shape such that there is a definite flat spot to rest on the top of the keg so that it's at a consistent angle to the top of the keg.]
This should work with any keg, no jig required.
Here it is after cutting but before cleaning up the edge.
If anyone would like to see a pic or two demonstrating the placement of the grinder, let me know.
I finally figured out what I think is the best way, and it worked perfectly.
I just moved my 4" angle grinder's guard into a position where it would contact the inside rim of the keg in two places, as I moved the grinder around the inside perimeter of the keg. [Edit: My grinder also has a shape such that there is a definite flat spot to rest on the top of the keg so that it's at a consistent angle to the top of the keg.]
This should work with any keg, no jig required.
Here it is after cutting but before cleaning up the edge.
If anyone would like to see a pic or two demonstrating the placement of the grinder, let me know.