185 vacuum and dust extraction adapters 27-120 mm - every pairing, both ends fit either way, no supports

**185 adapters — every pairing between twenty nominal sizes from 27 to 120 mm**, out of one generator. Not a folder of one-off models that happen to sit together: one geometry, one fit system, one tolerance, scaled across the whole matrix. The only combinations left out are the ones that would not be an adapter at all, where the two sizes differ by less than 2 mm. **Both ends fit either way.** This is the part most adapters get wrong. A vacuum hose is sometimes pushed on and sometimes pushed in…

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