M4 can be hardened to a high Rockwell hardness level, typically between 60 to 65 HRc, which contributes to its excellent wear resistance.

Due to its high hardness and the presence of vanadium, M4 exhibits exceptional wear resistance, maintaining a sharp edge for an extended period.

M4 steel's wear resistance directly translates to superior edge retention, meaning the blade stays sharp longer after being honed.

Despite its high hardness, M4 maintains a good level of toughness, allowing it to withstand significant impact without chipping or breaking.

As a powder metallurgy steel, M4 has a fine and uniform grain structure, which contributes to its overall strength and integrity.

The high amounts of vanadium, tungsten, and molybdenum in M4 enhance its performance characteristics, including wear resistance and heat resistance.

M4's balanced properties make it suitable for a wide range of applications, from precision cutting tools to heavy-duty use in industrial settings.

M4 is considered a premium steel, often chosen for high-end knives and tools where performance and durability are paramount.

M4 steel can develop a unique patina over time, which some users appreciate for its natural aging process and character.

Blades made from M4 steel can be sharpened to a very fine edge, which is beneficial for detailed work that requires a high level of precision.

While it may not be as common as some other steels, M4 is available from reputable manufacturers, ensuring users can access its high-quality properties.

When properly heat treated, M4 can achieve an optimal balance of hardness and toughness, making it an excellent choice for knife blades.