Since I myself have had bad experiences when it comes to the tightness of the mill, I write my tips here. I really thought that I would do something wrong when I tried to produce a dressing and in the bulge of the food processor garnered a puddle. So I have the first mill ... ordered from another supplier sent back. But since I do so much wanted a functioning small mill, I then tried again it here. Conclusion: absolutely tight during operation on my Kenwood Cooking Chef KM 086. The plastic cover but are not sealed, so you kept things can not simply shake again ... that is not claimed by Kenwood ... only airtight , I am excited about the part that easily produces dressings, rubs small apples, mini amounts cream beats and simple, unpeeled whole almonds and hazelnuts transformed into finely-grated versions that cost commercially fast times tripled. The four glasses are of the finest quality, could be a little bigger ... capacity to operate on the Kenwood limited to 200 ml, because yes even the cutting blade has to fit into the glass ... One can also eventually fill then ... eg in dressing with diced onions, as an onion but (processed with the mill) is rubbed very small. I want to do without this accessory in no case more and I have no trouble with the cleaning, the lenses will not run in the dishwasher, is (as usual from Kenwood) best quality !!! Fuck knows what was going on with the first sentence that I just could not get close ... well, that I dared again to obtain a new set here.