How to Cut Fret Slots with a Dremel: 2026 Guide

Perfect your luthiery skills by learning to cut fret slots with a Dremel in 2026. This precise method uses rotary tools for clean, accurate cuts on guitar fretboards, ideal for custom builds or repairs. Our step-by-step guide ensures professional results at home.

With modern Dremel bits and depth stops, achieve exact fret heights matching industry standards like Dunlop or StewMac specs. Safety first, followed by pro tips for binding and radius compensation.

Step 1: Gather Tools and Materials

Essential kit for flawless fret slotting.

1. Dremel 4300 or 4000 series.
2. 1/16-inch fret slot saw bit.
3. Digital depth gauge.

Step 2: Prepare the Fretboard

Set up for precision cutting.

1. Secure board in vise.
2. Mark slot positions with template.
3. Tape adjacent areas.

Step 3: Set Dremel Depth and Speed

Calibrate for exact fret depth (0.040-0.055 inches).

1. Use depth stop attachment.
2. Set speed to 20,000 RPM.
3. Test on scrap wood.

Step 4: Cut the Slots

Execute straight, clean plunge cuts.

1. Align bit perpendicular.
2. Plunge slowly, no pressure.
3. Clear dust frequently.

Step 5: Clean and Inspect

Finish for smooth frets.

1. Vacuum debris.
2. File bottoms flat.
3. Dry-fit frets.

Advanced Tips for Radius Boards

Handle curved fretboards expertly.

1. Use radius cutting jig.
2. Angle Dremel accordingly.
3. Measure each slot individually.

Frequently Asked Questions

What bit size for standard fret slots?

Use a 0.023-inch (0.6mm) thick diamond or carbide bit for most electric guitars, ensuring snug fret fit.

How deep should fret slots be?

Typically 0.040 inches for vintage, 0.055 for modern. Measure from board surface to fret top post-install.

Can I use a Dremel on ebony fretboards?

Yes, but go slow with light passes to avoid burning; use compressed air for cooling.

What's the best Dremel model for this?

Dremel 4300 with variable speed and flex shaft for maneuverability on necks.