Cold Steel’s Recon is one of its most time-tested tactical folding knife offerings. The fixed-blade version dates back to the 1980s, and it was among the first knives the brand ever offered. However, ...

This article was updated Feb. 3, 2023. It was originally published June 7, 2016. Hot and cold rolled steel are two common types of steel. Engineers need to know the difference between them to turn out ...

The terms hot-rolled steel and cold-rolled steel come from the process of producing the steel. Rolling is employed to enhance specific properties of the steel, such as its mechanical characteristics, ...