--- product_id: 742750517 title: "Graph Tech PT-6643-00 GRAPH TECHIbanez/PRS BLACK TUSQ XL Nut" brand: "グラフテック(graph tech)" price: "€ 26.62" currency: EUR in_stock: true category: "グラフテック(Graph Tech)" url: https://www.desertcart.com.cy/products/742750517-graph-tech-pt-6643-00-graph-techibanez-prs-black-tusq store_origin: CY region: Cyprus --- # Boosts sustain & sound clarity Perfect fit for Ibanez/PRS guitars Pre-slotted for easy installation Graph Tech PT-6643-00 GRAPH TECHIbanez/PRS BLACK TUSQ XL Nut **Brand:** グラフテック(graph tech) **Price:** € 26.62 **Availability:** ✅ In Stock ## Summary > 🎸 Elevate Your Tone, Sustain Your Edge! ## Quick Answers - **What is this?** Graph Tech PT-6643-00 GRAPH TECHIbanez/PRS BLACK TUSQ XL Nut by グラフテック(graph tech) - **How much does it cost?** € 26.62 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/742750517-graph-tech-pt-6643-00-graph-techibanez-prs-black-tusq) ## Best For - グラフテック(graph tech) enthusiasts ## Why This Product - Trusted グラフテック(graph tech) brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Installation:** Pre-slotted design means minimal setup—get back to playing faster with professional-grade ease. - • **Enhanced Sustain & Tone:** Dramatically increases string resistance and sustain, unlocking richer bass and sparkling trebles. - • **Tuning Stability You Can Trust:** Innovative TUSQ material reduces string stress and friction, keeping your guitar perfectly in tune. - • **Precision Fit for Iconic Guitars:** Tailored for Ibanez and PRS models, ensuring seamless compatibility and performance. - • **Revive Your Guitar’s True Voice:** Transmits string vibrations efficiently to restore the authentic, vibrant sound your instrument deserves. ## Overview The Graph Tech BLACK TUSQ XL Nut (PT-6643-00) is a premium replacement nut designed for Ibanez and PRS guitars. Crafted from advanced TUSQ material, it enhances string sustain, tuning stability, and overall sound quality. Pre-slotted for easy installation, this black nut optimizes vibration transfer to deliver richer, more dynamic tones, making it a must-have upgrade for serious guitarists seeking professional sound and reliability. ## Description PT-6643-00 is the perfect replacement BLACK TUSQ XL nut for many Ivanies or PRS electric guitars. The bottom (adhesive side) has no angle to the fingerboard. Pre-slotted and ready for use with minimal processing The BLACK TUSQ XL series creates a thin Teflon film on contact surfaces due to friction by moving and vibrating strings. It acts as a lubricant so that the string will not be locked too much than needed, reducing the stress that tends to be focused on one point. This makes the string less likely to break and makes tuning more stable. It transmits string vibration to the body most efficiently, pulling out the original sound of your instrument without loss, from bouncy highs to rich bass. It has more magnifying compounds than traditional ones to restore great sound that has been lost. [Note] For some products, the end of the model number has been changed from -00 to -C0. The model number may be mixed with the product sold, but the part itself is the same product. Installation may require modification to fit individual instruments. The appropriate skill and knowledge are required for handling. We suggest you to ask a professional professional and musical instrument store. We cannot guarantee any damage or damage caused during installation ## Features - BLACK TUSQ XL Nuts perfect for many Ivanies or PRS guitars - Dramatically improved strings resistance and sustainability - Improved sound quality / Stable tuning - Dimensions: 5.98mm W x 42.95mm L x 7.95mm H - Specifications: Slotted (string groove) / Strings: 1.4 inches (35.22 mm) / Color: Black ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0037NVSYY | | Amazon Bestseller | #17,951 in Musical Instruments ( See Top 100 in Musical Instruments ) #591 in Guitar Cleaning & Care Products | | Back Material Type | Spruce | | Body Material Type | Spruce | | Brand Name | グラフテック(Graph Tech) | | Color | black | | Customer Reviews | 4.7 4.7 out of 5 stars (881) | | Fretboard Material Type | Rosewood | | Guitar Bridge System | Fixed | | Guitar Pickup Configuration | S-S-S | | Hand Orientation | Right | | Instrument | Guitar | | Instrument Size | Pack of 1 | | Item Dimensions | 9 x 9 x 9 cm | | Item Dimensions L x W x H | 9L x 9W x 9H cm | | Item Type Name | GRA Saddle | | Item Weight | 5 g | | Manufacturer | グラフテック(Graph Tech) | | Manufacturer Part Number | PT-6643-00 | | Model Name | GRA Saddle | | Model Number | PT-6643-00 | | Neck Material Type | maple wood | | Number of Strings | 6 | | String Material Type | TUSQ | | Top Material Type | Spruce Wood | | UPC | 702725121755 | | Unit Count | 1 Count | | Warranty Description | No | ## Product Details - **Back Material Type:** Spruce - **Body Material:** Spruce - **Brand:** グラフテック(Graph Tech) - **Color:** black - **Top Material Type:** Spruce Wood ## Images ![Graph Tech PT-6643-00 GRAPH TECHIbanez/PRS BLACK TUSQ XL Nut - Image 1](https://m.media-amazon.com/images/I/41xGHt5vvaL.jpg) ![Graph Tech PT-6643-00 GRAPH TECHIbanez/PRS BLACK TUSQ XL Nut - Image 2](https://m.media-amazon.com/images/I/11uEuvLTwCL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: which nut do i need to replace the black one on my epiphone less paul ?** A: You need to pay very close attention to the string spacing on your guitar. This nut is for a string spacing of 1-3/8". Epiphone Les pauls have a string spacing at the nut of 1 3/8". USA Gibson Les Pauls have a string spacing of 1-7/16". That 1/16" makes a difference. You make sure you get the right one. The string spacing on this particular nut is 1-3/8" which will also fit an ESP LTD EC series guitar. Graph Tech does make an exact fit for a 1-7/16" Les Paul nut. These are good quality. **Q: Will this fit Ibanez Gio guitar? If not can a nut be recommended?** A: It needs to match the neck radius and the string width. Measure those two things and if it matches this nut then it should fit. To measure the radius I just made a template from cardboard. Height wise this nut has plenty of stock to be fit to any neck. I think I ended up sanding about 1/8" off the bottom to fit it to my Yamaha se350 (strat style guitar). **Q: Will this fit a Jackson js22 dinky ?** A: Whatever nut you decide on, some adjustment will be needed. If you don’t have the tools to do it, bring to a luthier. If you do decide to do it, you will need a caliper and some files. Good luck. **Q: Is this for a right-handed guitar?** A: Yes ## Frequently Bought Together - GRAPH TECH GUITAR LABS Guitar Top Nut (PT-6643-00) - PRS Guitars SE Locking Tuners Set of 6, Chrome (106297::C:003) - Graphtech Stringsaver Saddle Prs -6pcs --- ## 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.com.cy/products/742750517-graph-tech-pt-6643-00-graph-techibanez-prs-black-tusq](https://www.desertcart.com.cy/products/742750517-graph-tech-pt-6643-00-graph-techibanez-prs-black-tusq) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-06-22*