Magimix 17715 Main blade, Dough blade and Spindle cover is for models of Magimix 4000, 4100, 4200, 4200xl and 4150 food processors. This Kit upgrades the blades and spindles to the latest design – with Stronger drive cog – changing the Spindle does not affect the Disc support or other attachments only the Dough blade and Main Blade (as supplied)