50 vacuum and dust extraction adapters 27-120 mm - both ends fit either way, test rings, no supports

Fifty adapters, every useful pairing between 27 and 120 mm, out of one generator. Not fifty one-off models that happen to be in a folder together — one geometry, one fit system, one tolerance, scaled across the whole range. **Both ends fit either way.** This is the part most adapters get wrong. A vacuum hose is sometimes pushed on and sometimes pushed in, and you never know in advance which side is the socket. So every end here is a cone that runs *through* its nominal size: it starts 1.5 mm un…

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