What is this? #07

This should be another easy one!

 

The answer will be posted in a few days' time after you have posted your wild and out of the box guesses. 😁

 

Compilation of 13 focus stacked macro shots.

 

Edited 2021/02/21 to add the description:

This is a composite image of 13 1.16:1 macro shots of a 31 mm long corkscrew attached to a Schick pocket knife.

Done