Korena
Product detailSKU #1312645317216

Ernie BallCustom Gauge 1012 .012GA Single Acoustic or Electric String

Ernie Ball
Ernie Ball Custom Gauge 1012 .012GA Single Acoustic or Electric String

Independent shopping perspective

The Korena take

A single .012 plain steel string sold individually. For replacing a broken string or building a custom gauge set without buying a full pack.

Ernie Ball Custom Gauge 1012 .012GA Single Acoustic or Electric String product detail
Product studyErnie Ball Custom Gauge 1012 .012GA Single Acoustic or Electric String

Strong match

Who this is for

  • Replacing a snapped high E without opening a new set
  • Building custom hybrid gauges on electric or acoustic
  • Keeping spares in a gig bag for one specific string

Consider the trade-offs

When to look elsewhere

  • Anyone needing a full restring — buy a set instead
  • Players who want matched tone across all six strings
  • Wound-string replacements, this is plain steel

What matters in use

The specifications, translated

Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01

.012 gauge

Heavier than a standard .009 or .010 top string. More tension, stiffer bends, fuller tone on the high end.

Detail 02

Plain steel, not wound

At .012 the string is solid steel with no winding. Used as a high E or B depending on the set.

Detail 03

Fits acoustic or electric

Plain steel strings work on both. No magnetic difference matters until you get to the wound strings.

Detail 04

Single string, not a set

You get one string. Gauge choice is yours, which is the point of buying singles.

Detail 05

Ball end

Standard ball-end anchoring works with most bridges and tailpieces. Not for classical slotted bridges.

Final check

Know before you order

  1. 01One string only — no pack, no extras
  2. 02Check your current set's gauge chart before ordering a replacement
  3. 03New strings stretch; expect to retune several times the first day

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01Is this one string or a pack?

One string. Singles are sold individually so you can replace a broken string or assemble a custom gauge combination.

02Can I use this on an acoustic guitar?

Yes. Plain steel strings function the same on acoustic and electric guitars.

03Which string position does .012 cover?

It depends on your set. In heavier electric sets it is often the high E; in lighter sets it can serve as the B string.

04Is .012 wound or plain?

Plain. It is solid steel with no outer winding.

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