Easy mechanichal engineering

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Across
  1. 2. The spinning shaft in a mill or lathe
  2. 4. Red gemstone used as the tip of a measuring-machine probe
  3. 6. The science of measuring things
  4. 8. Gently reheating hardened steel so it is less brittle
  5. 11. Workshop tool that clamps a part tightly in place
  6. 15. Extremely heavy metal used in old light-bulb filaments
  7. 16. Twisting force, measured in newton-metres
  8. 17. Machine that spins metal while a blade shapes it
  9. 18. Wheel with a rope used to lift heavy loads
  10. 21. Toothed wheel that transfers motion and changes speed
  11. 22. Measuring tool with two jaws that grip an object
  12. 24. Tool that measures tiny thicknesses by squeezing a part between two ends
  13. 25. Light silver metal used for foil and drink cans
Down
  1. 1. Round gauge with a needle, used to check if a part is flat or wobbly
  2. 3. Dunking hot metal in water or oil to cool it fast
  3. 5. Spinning bladed wheel in jet engines and power plants
  4. 7. Gas that shields the weld in TIG welding
  5. 9. Part that moves up and down inside an engine cylinder
  6. 10. Part with rolling balls that lets a shaft spin smoothly
  7. 12. Strong alloy of iron and carbon, used in almost everything
  8. 13. Simple machine, a bar that pivots on a fulcrum
  9. 14. Joining metal parts by melting them together
  10. 19. Shiny metal that makes steel stainless
  11. 20. Force that slows two rubbing surfaces, creating heat
  12. 23. Tool that makes round holes