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From pocket knives to wood chippers, see how these super sharp objects are made.
Filet Knife – 00:00 – 05:07
Hedge Sheers – 05:07 – 10:13
Cartridge Blades – 10:13 – 15:20
Pocket Knives – 15:20 – 20:27
Utility Knives – 20:27 – 25:27
Pencil Sharpeners – 25:27 – 30:26
Chainsaw Mining Machine – 30:26 –
Alternate Pocket Knives – 35:26 – 40:27
Wood Chippers – 40:27 – 45:25
Medieval Axes – 45:25 – 50:39 Read More Science Channel
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