Ernie Ball .009 Plain Steel Electric or Acoustic Single Guitar String

Custom-gauge single string for personalised string builds.

Ernie Ball Plain Steel single strings are designed for both electric and acoustic guitars, offering flexibility for players building custom string sets or replacing an individual broken string. Made from specially tempered, tin-plated high carbon steel, they deliver a crisp, bright tone that works well across a range of musical styles. You can use these single strings to tailor your string set’s feel and response, especially in custom setups or when experimenting with alternative tunings.

Each pack contains a single .009 string. 

Classic steel feel and reliable performance.

The plain steel construction ensures a direct feel with minimal core flex, making it suitable for high-pitch and lead lines where clarity and responsiveness are essential. The ball end design makes installation straightforward on most electric and acoustic bridges, and its length accommodates both full-scale and many custom stringing needs. 

Versatile for repairs and custom builds.

Whether you’re replacing a snapped high E string, crafting a non-standard gauge set, or tweaking “top-heavy” hybrid string arrangements, this .009 gauge single string gives you the freedom to fine-tune tension and tonal balance without buying full sets. It’s a practical addition for gig bags, tech kits or DIY string projects. 

KEY FEATURES: Ernie Ball .009 Plain Steel Electric or Acoustic Single Guitar String

• .009 gauge — Light tension suitable for high-E replacement or custom sets
• Plain steel construction — Delivers bright, clear tone with direct feel
• Tin plating — Helps resist corrosion and maintain consistent tone over use
• Ball end termination — Fits most electric and acoustic guitars.
• Versatile use — Great for experimenting with string builds or repairing broken strings