Screwdriver tip and diesel engine: what they have in common

1. Step 1. Screwdriver tip — is part of — Screwdriver. A flat or cross-shaped tip.
2. Step 2. Screwdriver — uses — Torque. The handle creates torque.
3. Step 3. Torque — is used in — Crankshaft. It turns the stroke of the pistons into torque.
4. Step 4. Crankshaft — is part of — Diesel engine. A crankshaft.

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