Brass Guitar Neck Shims – Set of 10

Brass guitar neck shims are designed to adjust the angle and height of a bolt-on neck accurately.
They are intended for luthiers, technicians and guitarists seeking a reliable, reversible adjustment.

These brass guitar neck shims are made from thin brass, a stable and durable material.
Unlike wood or cardboard, brass does not compress under screw pressure in the same way.

The kit includes ten shims in several complementary thicknesses.
This selection allows gradual, accurate neck adjustment within the neck pocket.

The guitar neck shims can be used individually or stacked together.
The deliberate inclusion of duplicate thicknesses makes it easier to obtain intermediate adjustments.

Brass guitar neck shims are primarily used to adjust neck angle on bolt-on guitars.
They can help correct string action without permanently altering the neck or body.

These shims also have a less widely known corrective function.
Over time, some neck heels may warp or bend slightly.

This deformation can cause uneven contact between the heel and the pocket.
Small gaps can appear and affect adjustment stability.

Because it is thin, brass can deform slightly when tightened.
It can therefore conform to minor unevenness in the heel or neck pocket.

The shims act as a mechanical compensating material.
They help restore more uniform contact without removing wood.

Contrary to a common misconception, brass guitar neck shims are not intended to improve tone.
However, they are not intended to degrade it either.

Brass is a dense, stable material with suitable mechanical properties.
It allows vibration transfer without excessive damping.

Using guitar neck-angle adjustment shims can therefore help preserve the instrument's acoustic behaviour.
The adjustment is intended to remain acoustically neutral.

This solution avoids more extensive and irreversible lutherie work.
It is particularly useful for restoration or older instruments.

Brass guitar neck shims therefore provide a practical, controlled approach to adjustment.
They suit both angle corrections and compensation for minor surface irregularities.

This product is intended for technical, repeatable workshop use.
It complements a set of tools dedicated to neck adjustment.

These shims suit guitar-building, maintenance and precision setup projects.
They offer a reliable solution for guitar neck shimming in professional settings.

See also our CNC guitar templates for consistent neck and body fitting.
Want to learn more about guitar neck angles? Read this guide.