Brake caliper and micrometer: what they have in common

1. Step 1. Brake caliper — has part — Piston. Pistons.
2. Step 2. Piston — is part of — Piston pump. The piston draws in and pushes out liquid.
3. Step 3. Piston pump — is part of — Jack. A hand plunger pump.
4. Step 4. Jack — uses — Screw. A screw jack.
5. Step 5. Screw — is used in — Micrometer. A precise screw with a 0.5 mm pitch.

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