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How It's Made · S32E09

Compression & Extension Springs, Micro Drill Bits, Skiffs, Painted Glass Backsplashes

Still from How It's Made S32E09

Summary

Computer-controlled machinery coils and shapes steel wire into compression and extension springs before heat treatment and finishing. Carbide blanks are diamond-ground into extremely small drill bits, lightweight composite layers are vacuum-infused to form fishing skiffs, and low-iron glass is cut, tempered and coated on the reverse to create painted backsplashes.