Bests & Worsts Reviews from Amazon

I purchased this adapter to connect my Fein Turbo II vacuum to the dust port on my Bosch 4100 table saw, which it does perfectly. You would think manufacturers/sellers of dust collection adapters like this would understand that potential buyers would like to KNOW the dimensions so they don't have to GUESS whether it'll fit their particular application or not, but they don't. So, since I now own this adapter, I've taken the measurements and I'm providing them here so others don't have to keep guessing about this adapter at least! large O.D. = 2-1/4" = 57.15mm large I.D. = 2-3/64" = 52mm small O.D. = 1-37/64" = 40mm small I.D. = 1-3/8" = 35mm