Mechanical Tools and Gear

Across

1. Device that connects two different plugs

4. Tool used to tighten or loosen bolts

7. Curved blade used for harvesting crops

9. Machine that duplicates documents quickly

10. Block used to prevent movement

11. Device used to capture photos

12. Material used to close gaps tightly

Down

2. Tool designed for a specific function

3. Cooling system often used in buildings

5. Handle used to turn a shaft

6. Machine that converts fuel to motion

8. Gear with teeth that engage chain