Description
If you’re chasing that extra edge of clarity and output without changing your favorite gauge, the Ernie Ball 2923 Super Slinky M-Steel set is the upgrade to grab. Built on Ernie Ball’s cobalt-blended M-Steel alloy wrapped around a hex core, this .009-.042 set delivers a stronger magnetic response than traditional nickel-plated strings, meaning your pickups pick up more signal and your tone comes through with sharper highs, tighter mids, and lows that hit harder.
Every set is precision-wound for consistent intonation and a smooth, comfortable feel under the fingers, so you get reliable performance whether you’re tracking in the studio or gigging night after night. The .009-.042 gauge spread keeps bending easy while still holding up for rhythm and lead work alike, making this a versatile choice for players who move between styles.
Ernie Ball has been refining electric guitar strings since the early 1960s, when the brand got its start customizing gauges for guitarists who wanted an easier playing experience. That same obsession with feel and tone is baked into the M-Steel line, giving you a set that’s engineered for players who want more from every note.
- Gauges: .009, .011, .016, .024, .032, .042
- M-Steel cobalt-blended alloy wrap wire
- Hex-shaped steel core for tuning stability
- Boosts output and clarity over standard nickel strings
Swap out your dead strings for a set of M-Steel and hear the difference cobalt makes.





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