Shimano BB-MT800 tool recommendations ?

[robadub]

Just purchased the above Shimano XT BB, and Icetoolz 11F3 Hollowtech II tool.

Unfortunately, I probably should have done more research, as i have now discovered the 11F3 doesn't fit the TL-FC24 adapter Shimano supply with the BB.

I don't have a wrench large enough to grip the adapter, so i'm now in the market for either a tool which fits the BB, or the adapter ?

Anyone any recommendations ?

Thanks.