This String Action Gauge is a must-have tool for guitar players, technicians, and luthiers. Designed for precision setup work, this stainless-steel measuring ruler helps you achieve accurate string height, saddle adjustment, nut setup, and more — all in one compact, credit-card-sized tool.
High Quality Stainless Steel
Made from durable stainless steel for long-lasting performance. Resistant to bending, wear, and corrosion.
Compact & Convenient
Credit-card sized (8.4 × 5.4 cm), lightweight at only 24g. Easy to carry in a wallet, case, or toolkit.
Multi-Measurement Precision Tool
Includes fraction / decimal / metric conversion chart on the back for quick reference.
Fast & Accurate
Faster and more accurate compared to standard rulers — ideal for detailed setup and maintenance work.
Multi-Purpose Luthier Tool
Suitable for measuring:
String height
Bridge saddle height
Saddle slot depth
Fret slot depth (unbound fingerboards)
Nut height
Pickup pole piece height
Cost-Saving All-In-One Tool
One gauge combines the function of multiple tools, saving time and money.
All items are dispatched within 1 working day.
Fast delivery via Royal Mail or other trusted couriers.
Tracking provided where applicable.
We accept returns within 30 days of delivery.
Item must be unused and in original condition.
Shop with confidence—your satisfaction is our priority.
If you have any questions or need assistance, feel free to contact us. We respond quickly and are always happy to help.