✅ Tool is the general word for any kind of handheld object that helps you do things, especially physical or manual labor (garden tool; kitchen tool).
✅ A utensil is a kind of tool, typically one used to prepare or eat food (kitchen utensil). The word utensil, however, does not necessarily refer to all tools. For example, you wouldn’t say garden utensil without getting a few odd looks!
✅ Additionally, tool can be used figuratively to refer to anything, including people, that is being used by someone in a position of power to exercise that power (The prime minister was a tool of the king).
By now you should have all the tools you need to appreciate these synonyms for utensil.