Alnicov 9Pcs Guitar Understring Radius Gauge with Pin Puller Set Luthier Setup Tools for Bass Fretboard Measurements and Bridge Saddles Adjustments

This luthier tool set including gauge ruler,understring radius gauges. The set were made of stainless steel, sturdy and durable to use. 9pcs Radius Gauges Sizes: 7.25" 9.5" 10" 12" 14" 15" 16" 17" 20". Use these to setup your guitar bridge saddles to match the fingerboard radius accurately. String Action Ruler with scale for string height, for ridge saddle slot depth and for nuts saddles and pole pieces. Perfect for obtaining accurate action measurements for guitar, bass, mandolin, banjo, etc Portable size. Convenient to carry. You can use them anytime and any where. Suitable for acoustic guitars, electric guitars, or bass bridge saddles setup.