Steel milling rollers and chisel: what they have in common

1. Step 1. Steel milling rollers — is part of — Roller mill. Pairs of steel rollers crush the grain.
2. Step 2. Roller mill — evolved from — Gristmill. Rollers instead of millstones.
3. Step 3. Gristmill — uses — Grain. A mill grinds grain.
4. Step 4. Grain — is used in — Sickle. Cereals were reaped with a sickle.
5. Step 5. Sickle — has part — Handle. A short one-handed handle.
6. Step 6. Handle — is part of — Chisel. A wooden or plastic handle.

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