Ernie Ball M-Steel Electric Guitar Strings are made of a patented Super Cobalt alloy wrapped around a Maraging steel hex core wire, producing a richer and fuller tone with a powerful low-end response. M-Steel plain electric guitar strings are comprised of a specially tempered steel for maximum fatigue resistance. The electric plain strings also utilize a patented winding of steel around the ball end that reduces slippage, breakage and stays in tune better than conventional plain strings.
BALL END M-Steel wound strings feature black coated ball ends made from high quality brass wire rod to our exacting specifications
WRAP WIRE M-Steel Slinky strings are precision wound with a patented iron-cobalt alloy wire containing even more cobalt than Cobalt Slinkys providing maximum output and clarity.
CORE WIRE The core is made from "M-Steel" which stands for maraging steel. This defense grade superalloy provides enhanced low end, improved tuning stability, and increased fatigue strength.