Complex sentence: EDM can cut intricate contours or cavities in pre-hardened steel without the need for heat treatment to soften and re-harden them as well as any other metal or metal alloy such as titanium, hastelloy, kovar, and inconel.
Split into simpler sentences: EDM can cut intricate contours or cavities in pre-hardened steel without the need for heat treatment to soften and re-harden them. This method can be used with any other metal or metal alloy such as titanium, hastelloy, kovar, and inconel.