I though it was about machining threads on screws. If you did too and found it exciting, you'll find this book exciting too: Exactly: How Precision Engineers C

I though it was about machining threads on screws. If you did too and found it exciting, you'll find this book exciting too: Exactly: How Precision Engineers Created the Modern World https://www.amazon.co.uk/Exactly-Precision-Engineers-Created-Modern/dp/0008241767 https://www.amazon.co.uk/Exactly-Precision-Engineers-Created...