What do the following items have in common?

[Deep13]

Look at the following items and see if you can guess what they all have in common.

[AlCzervik]

1. tools, but only the first 4 are useful.

[Ned_Devine]

2. are they all tools? Only one has been used more than the others?

[Solly Mack]

3. all obsolete because of electricity?

(all tools)

[sazemisery]

4. Tools of the Industrial Military Complex?

Did I win?

[Lerkfish]

5. all originated before 1810?

:)

[MuseRider]

6. Instruments of torture? n/t

[Coexist]

7. all silver tools.

[Orsino]

8. Tools manufactured in Asia. n/t

[Beausoleil]

9. They can all be bought cheap? n/t

[kenny blankenship]

10. Yes they're all tools but the differences outweigh the similarities

By comparison with McCain, the first one can still pound in a nail.
The second one still has its teeth.
The third one's ring is the same width as when first it was made.
And the fourth can turn to both the left and the right as needed, not just righty tighty, righty tighty all the time.

[catnhatnh]

11. They all work on wingnuts? N/T

[eppur_se_muova]

12. They're all worked by hand?

Apologies for unpleasant mental images, but you asked.