Damascus steel and CNC machine: what they have in common

1. Step 1. Damascus steel — is material for — Sword. Damascus blades.
2. Step 2. Sword — has part — Handle. A handle.
3. Step 3. Handle — is part of — Corkscrew. A handle acting as a lever.
4. Step 4. Corkscrew — uses — Screw. A spiral.
5. Step 5. Screw — is used in — Lead screw. A lead screw is a screw.
6. Step 6. Lead screw — is part of — CNC machine. Ball screws move the tables.

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