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Sean Ranchbari

one of my brushes was actually cracked and chipped around the edge, which incidentally is also the one with the broken lead. There was caulk in there from before, however.

I hadn’t thought about the armature but the lead/copper brushes aren’t going to be much harder than the carbon copper ones in there already. The only downside I can think of is that the current ones are a bit self-lubricating whereas the copper and lead mix will not be.