--- product_id: 54160004 title: "oneflysky Premium Luthier Tools Repair Kit for Guitar Bass, String Action Ruler Gauge Tool, 9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards,9 Sand Papers, Strings Cleaner" brand: "oneflysky" price: "€ 48.60" currency: EUR in_stock: false category: "Musical Instruments" url: https://www.desertcart.pt/products/54160004-oneflysky-premium-luthier-tools-repair-kit-for-guitar-bass-string store_origin: PT region: Portugal --- # oneflysky Premium Luthier Tools Repair Kit for Guitar Bass, String Action Ruler Gauge Tool, 9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards,9 Sand Papers, Strings Cleaner **Brand:** oneflysky **Price:** € 48.60 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** oneflysky Premium Luthier Tools Repair Kit for Guitar Bass, String Action Ruler Gauge Tool, 9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards,9 Sand Papers, Strings Cleaner by oneflysky - **How much does it cost?** € 48.60 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/54160004-oneflysky-premium-luthier-tools-repair-kit-for-guitar-bass-string) ## Best For - oneflysky enthusiasts ## Why This Product - Trusted oneflysky brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Perfect for obtaining accurate action measurements for electric guitar, bass and acoustic guitar. String Action Ruler Gauge Tool,9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards are made of Stainless steel. Features ✔ 9 Understring Radius Gauge: 1.Radius gauges come in 9 sizes: 7.25" 9.5" 10" 12" 14" 15" 16" 17" 20" 2.These come in the most popular fingerboard radius and make it easy to measure the radius from either above or below the strings. ✔ Guitar Action Ruler: 1.Ruler size: 8.9 * 5.1cm / 3.5 * 2in (length * width), Pocket-sized is convenient to carry. 2.The reverse side is for string spacing adjustment. 3.The string spacing pitch displayed is 38/40/41.5/43/45mm on guitars 4.Scale for string height: 0.01-0.14in / 0.25-3.50mm 5.Scale for bridge saddle slot depth: 0-0.875in / 0-20mm 6.Scale for nuts saddles and polepieces: 0-0.75in / 0-20mm 7.Ruler weight: 28g / 0.99oz ✔ 2 Fretboard Protectors: Designed to protect the fingerboard when doing work on your frets Comes with 2 sizes (dimension on either side of the fret gap): 1/4" 3/8" ✔ 9 pcs Sand Paper: 1.size approx. 118 x 90mm / 4.65 x 3.54 inch (3 pcs 150 grit, 3 pcs 320 grit, 3 pcs 400 grit) 2.150 grit and 320 grit are used for coarse grinding. 400 grit is used for fine grinding, making the polish more smooth and delicate. ✔ Strings Care Polish Cleaner: 1.Convenient to carry and ergonomic hand held. 2.Cleanable Microfiber Pads For Long Term Low Maintenance Use 3.Revitalizes Used, Old, And Damaged Strings 4.It removes harmful substances like sweat and oils, and keeps strings strong. ## Features - Neck Radius Gauges Come in 9 sizes: 7.25" 9.5" 10" 12" 14" 15" 16" 17" 20", Use these to accurately setup your guitar bridge saddles to match the fingerboard radius - Double-sided Guitar Action Ruler Use To Measure: Nut / String / Bridge / Pickup Pole Piece / Saddle Height Plus Saddle Slot/ Fret Slot Depths - 2 Fretboard Protectors: Prevents scratching or damaging to guitar or bass fretboard when filing and polishing frets, DIY for many fret works. 9 pcs Sand Paper Model: size approx. 118 x 90mm / 4.65 x 3.54 inch (3 pcs 150 grit, 3 pcs 320 grit, 3 pcs 400 grit), used for polishing saddle, nut, string etc. 150 grit and 320 grit are used for coarse grinding. 400 grit is used for fine grinding, making the polish more smooth and delicate. - Strings Care Polish Cleaner Cloth Tool: Revolutionary design provides unprecedented 360 degree string cleaning action, extends the life and preserves the tone of guitar strings. - This luthier tool set was specifically created to help complete the most common repairs and adjustments, suitable for string instruments such as guitar, bass, mandolin, banjo, etc. Package included: 1 String Action Ruler Gauge, 9 Understring Fretboard Radius Gauge, 2 Protector Guards, 9 Sand Papers, 1 Strings Cleaner ## Images ![oneflysky Premium Luthier Tools Repair Kit for Guitar Bass, String Action Ruler Gauge Tool, 9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards,9 Sand Papers, Strings Cleaner - Image 1](https://images-na.ssl-images-amazon.com/images/I/51UB0wj3E1L.jpg) ![oneflysky Premium Luthier Tools Repair Kit for Guitar Bass, String Action Ruler Gauge Tool, 9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards,9 Sand Papers, Strings Cleaner - Image 2](https://images-na.ssl-images-amazon.com/images/I/512RWhRbWwL.jpg) ![oneflysky Premium Luthier Tools Repair Kit for Guitar Bass, String Action Ruler Gauge Tool, 9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards,9 Sand Papers, Strings Cleaner - Image 3](https://images-na.ssl-images-amazon.com/images/I/51AUB8ZIbUL.jpg) ![oneflysky Premium Luthier Tools Repair Kit for Guitar Bass, String Action Ruler Gauge Tool, 9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards,9 Sand Papers, Strings Cleaner - Image 4](https://images-na.ssl-images-amazon.com/images/I/51t02ohpL1L.jpg) ![oneflysky Premium Luthier Tools Repair Kit for Guitar Bass, String Action Ruler Gauge Tool, 9 Understring Fretboard Radius Gauge, 2 Fingerboard Fret Protector Guards,9 Sand Papers, Strings Cleaner - Image 5](https://images-na.ssl-images-amazon.com/images/I/51C8L3lLmlL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/54160004-oneflysky-premium-luthier-tools-repair-kit-for-guitar-bass-string](https://www.desertcart.pt/products/54160004-oneflysky-premium-luthier-tools-repair-kit-for-guitar-bass-string) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-07*