How It's Made S13E03 · Swiss Army Knives, Player Piano Rolls, Oil Tankers, Racing WheelsSwiss Army Knives, Player Piano Rolls, Oil Tankers, Racing Wheels

Blades and folding implements are assembled into Swiss Army knives, paper rolls are perforated to control player pianos, large steel sections and storage tanks are assembled into oil tankers, and lightweight metal is formed and finished into racing wheels.