MB3 105a: Moving Muktzeh Items (308:1-3)

A hammer used to grind spices is considered muktzah machmat chisaron kis if he is careful not to use it for anything else, otherwise it's a kli shemelachto l'issur. Something you plan on selling.

Conditions under which a kli shemelachto l'issur (something normally used for issur purposes) can be moved include a permissible usage or for its place. Moving something with your body (כלאחר יד). Unplugging something when it's turned off to protect the item.