Use this domain for words referring to parts of tools and machines. You need to think of different tools and machines, and think of each part.
What words refer to parts of tools?
shaft, head, gear, lever, fulcrum, switch, key, spring
What are the parts of a knife?
handle, hilt, guard, blade, edge, tip, back, flat
What are the parts of a hammer?
handle, neck, head, claw
What are the parts of a saw?
handle, blade, teeth