This guitar luthier measuring tool kit set combines essential precision instruments in one compact package. It is designed to support accurate guitar setup, fretwork, and maintenance with practical tools you can rely on during routine adjustments and professional repairs. Key benefits Allinone measuring toolkit for precise guitar setup and fretwork, reducing guesswork and speeding up common tasks. Understring radius gauge and guitar radian ruler enable accurate replication of neck and fretboard geometry during repairs or refrets. 32 blade feeler gauge provides a wide range of clearances for measuring neck relief, action, nut slots, and string gaps with fine granularity. Compact, portable design that fits neatly on a workbench or in a tool roll for ontheroad instrument adjustments. Broad compatibility with standard guitar construction, suitable for electric, acoustic, and other commonly sized guitars. Built to deliver repeatable, reliable measurements to help achieve consistent results across setups and repairs. Product attributes Functionality: Measures neck radius, understring radius, radians, and gaps with a 32 blade feeler gauge to support setup and fretwork. Compatibility: Suitable for most standard guitars, including electric and acoustic instruments. Size: Compact, portable kit designed for convenient handling and quick reference during work. Material: Material details are not specified in the product listing. Performance: Provides precise, repeatable measurements to aid accurate adjustments and professional results. Included components: Ruler, Understring Radius Gauge, Guitar Radian Ruler, 32 Blade Feeler Gauge. Use cases Neck radius and fretboard work: Use the radius gauges (understring and guitar radian ruler) to verify or match the neck and fretboard curvature during refrets, fret leveling, or after installing a fretboard. Action and relief checks: Employ the ruler and feeler gauge set to measure string clearance at the frets, enabling accurate action adjustments and neck relief calibration. Nut slot and string gap assessment: Use the 32 blade feeler gauge to evaluate nut slot height and small string gaps, supporting precise nut filing and setup accuracy. Onsite setups: The compact kit is well suited for quick tuning and setup checks on stage gear or in a workshop where accurate measurements are essential for consistent tone and playability. Note: This description reflects the product's listed components and intended use as a guitar luthier measuring tool kit set. No additional details beyond what is specified in the product title are assumed.