
12L14 vs 1215 Steel: Best for Precision Machining?
12L14 vs 1215 Steel: What’s the Difference and Which Is Better for Precision Machining? Both 12L14 and 1215 are free-machining steels, popular for CNC turning, automatic lathes, and high-speed production. While they share similarities, key differences in their chemical makeup and machinability can affect performance, surface finish, and cost. This