This would greatly depend on which model of Chef you have. The model number is located on the underside of the Chef. The below is a brief overview of which attachments are compatible with which models:- A701: Only compatible with attachments starting with A7* A901: Compatible with attachments starting with A9 or AT* KM models: Compatible with attachments starting with AT* If using a KAT100ME adaptor, slow speed attachments starting with KAX can be used KVL models: Compatible with attachments starting with KAX/KAH/KAB/KAT* If using a KAT200ME adaptor, slow speed attachments starting with AT can be used KVC models: Compatible with attachments starting with KAX/KAH/KAB/KAT* If using a KAT200ME adaptor, slow speed attachments starting with AT can be used *Food Processors Attachments: The KAH647PL Food Processor will only operate on a high speed outlet The AT640/AT647 Food Processor will only operate on a medium speed outlet More information on the attachments available can be found by clicking this link .