• String action gauge and feeler blade kit with 32 precision blades fanned open, plus ruler tool displayed overhead.
  • String action ruler with printed measurement scales and protective plastic film overlay on metal surface.
  • Feeler blade gauge with 32 metal blades fanned open and inset showing blade placement under guitar strings.
  • String action ruler positioned across guitar fretboard measuring string height with millimeter and inch scale markings.
  • Hand holding feeler gauge with 32 blades opened showing individual thickness markings and measurement values.
  • String action ruler overhead view with labeled guides for string height, nut, pickup, bridge, and frets.
  • String action reference chart with instrument specs and closed feeler blade gauge with 32 stacked blades.
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The Guitar Fabrik

Guitar Feeler Gauge & Action Set

Guitar Feeler Gauge & Action Set

£10.00 GBP
£10.00 GBP
Sale Sold out
Taxes included.
Guitar tool kit to measure string action and related heights like bridge, pickup, and bone nut. Includes a string action gauge and a feeler blade for accurate measurements to adjust playability.
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Guitar Repair, String Action Gauge & Feeler Blade — kit for adjusting action

Tool kit to measure string action and related heights like bridge, pickup, and bone nut. Includes a string action gauge and a feeler blade for accurate measurements to adjust playability. Each of the 32 blades has a different thickness for precise readings.

Included tools: String action gauge; feeler blade (feeler gauge)  |  Blade count: 32 blades, each a different thickness  |  Use cases: Measure string, pickup, bridge, and bone nut heights

  • Measures string action at multiple fret positions
  • Assesses pickup, bridge, and bone nut height
  • 32-blade feeler gauge for precise readings under each fret
  • Informs truss rod, nut slot, and bridge height adjustments

This guitar feeler gauge and string action gauge set lets you measure and adjust guitar action with precision, whether you're setting up a new build or repairing an existing instrument. In stock in the UK with fast UK delivery.

Key Features

  • String action gauge: Measures string height at different positions, as well as micro height and fret slot depth — a reliable guitar action gauge for every setup.
  • Feeler blade (guitar feeler gauge set): Provides very precise measurement of string action at each fret; each of the 32 blades has a different thickness for exact readings under every fret.

Usage

Using a feeler gauge for guitar setup, you can read the gaps accurately and then adjust the truss rod, bone sillet slot, or chevalet height. It pairs perfectly with a complete guitar setup kit for dialling in playability.

If strong discrepancies appear between frets, confirm fret levelling issues with diagnostic tools, then carry out corrective work with the right gear. Explore our full range of luthier supplies in the UK to complete your workshop.

Developed and tested by The Guitar Fabric experts. VAT included.

Every guitar feeler gauge and string action gauge is checked and adapted by The Guitar Kit Fabrik experts for accuracy and durability, suitable for building or repairing electric guitars — dispatched from our UK warehouse.