Guitar Measure Tools Set Includes 9 Understring Radius Gauge and One String Action Ruler Luthier Tool for Bass Setup Bridge Saddle Adjustments

1. This luthier tool set including gauge ruler,understring radius gauges. The set were made of stainless steel, sturdy and durable to use. 2. 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. 3. 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 4. You can own two different kinds of tools to help you obtain accurate action measurements and you just need buy one set. You can save much money. 5. Portable size. Convenient to carry. You can use them anytime and any where. Suitable for acoustic guitars, electric guitars, or bass bridge saddles setup.