Guitar Centerline Guide High Precision Centerline Ruler Universal Size Guitar Fretboard Alignment Ruler for Luthiers

Basic Tool: This musical instrument tool is a guitar centerline guide designed for luthiers, repair shops, and careful hobby builders who need a clear reference when working on instruments.

Alignment Function: As a guitar fretboard alignment ruler, it helps you locate the true centerline across the neck and body so setup, repairs, and layout stay aligned straight and accurate.

Adjustable Design: The centerline ruler features an extendable width range of 25 mm to 75 mm, allowing it to fit different guitar neck sizes without slipping or feeling cramped.

Practical Value: This guitar repair tool makes centering faster and easier, reducing guesswork during measuring and helping you work with more confidence on delicate instrument parts.

Usage Purpose: Use it to mark, check, and confirm the centerline before carving, joining, or aligning components, so your guitar work looks cleaner and stays more consistent.