What is the width of a knife edge?

A knife edge typically refers to a very thin edge that is used in precision instruments and applications like balances or scales. The standard width of a knife edge is generally around 1 inch. This dimension provides a balance between precision and durability, allowing for accurate measurements while maintaining structural integrity.

Choosing a width of 1 inch offers a practical size that fits various applications, making it versatile in engineering practices. The other options, while potentially used in specific contexts, do not represent the conventional width of a knife edge in most standard applications, where the focus is on achieving fine calculations and precise results.