--- product_id: 48336104 title: "SPY-204UF1 Tri-Angle Ultra Fine Stone-White, Small | Accessory stones for sharpening, refining and polishing edges" brand: "spyderco" price: "$114.22" currency: USD in_stock: true reviews_count: 13 category: "Spyderco" url: https://www.desertcart.ec/products/48336104-spy-204uf1-tri-angle-ultra-fine-stone-white-small-accessory store_origin: EC region: Ecuador --- # Ultra-fine ceramic grit for precision Durable ABS base for stability Made in USA quality assurance SPY-204UF1 Tri-Angle Ultra Fine Stone-White, Small | Accessory stones for sharpening, refining and polishing edges **Brand:** spyderco **Price:** $114.22 **Availability:** ✅ In Stock ## Summary > 🔪 Sharpen like a pro, polish like a perfectionist! ## Quick Answers - **What is this?** SPY-204UF1 Tri-Angle Ultra Fine Stone-White, Small | Accessory stones for sharpening, refining and polishing edges by spyderco - **How much does it cost?** $114.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/48336104-spy-204uf1-tri-angle-ultra-fine-stone-white-small-accessory) ## Best For - spyderco enthusiasts ## Why This Product - Trusted spyderco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Stable Base:** Engineered with a robust ABS plastic base to ensure steady sharpening and polishing every time. - • **Proudly Made in the USA:** Crafted with premium materials and expert craftsmanship, supporting quality and reliability you can trust. - • **Universal Compatibility:** Perfectly fits Spyderco Sharpmaker and works seamlessly with all blade types for versatile edge refinement. - • **Precision Ultra-Fine Grit:** Achieve razor-sharp edges with high alumina ceramic rods designed for professional finishing. - • **Wet or Dry Use Flexibility:** Sharpen and polish your blades in any condition, adapting to your workflow effortlessly. ## Overview The Spyderco SPY-204UF1 Tri-Angle Ultra Fine Stone is a premium ceramic sharpening accessory designed for the Spyderco Sharpmaker system. Featuring ultra-fine high alumina ceramic rods and a durable ABS base, it delivers professional-grade edge finishing and polishing for all blade types. Made in the USA and suitable for both wet and dry use, this small yet powerful stone elevates your sharpening routine to expert levels. ## Description Product Description Spyderco Ultra Fine Triangle Stone. Measures 7" overall. High Alumina Ceramic construction. Ultra fine grit. Fits into the model 204 Sharpmaker sharpening system. Legal Disclaimer You must be at least 18 years of age to purchase this item. It is the buyer's responsibility to check local laws before purchasing. This item may require an adult signature upon delivery and ID is requested if the recipient appears to be under the age of 21. Box Contains 1 x Spyderco Tri-Angle Ultra Fine Grit Replacement Stone Review: Initial impressions first - This is my first spyderco stone, and I am pretty impressed, Immediately I took it to a straight razor around the HHT1 in sharpness, With around 50 strokes randomly each side this took it straight up to HHT3 or there abouts, Following this with a strop took it up another notch. Just for trial purposes I just took this dry to my seven day growth in a fairly cold room, no pulling, no popping sounds just a clean shave. Very impressive for this antique razor. I do not have the spyderco sharp system, I bought this stone to test the stone quality, I will be testing this next by rigging it to polish a zdp stretch and see how far this alone takes it. It's already a high polish edge from other stones but not this high a grit. Review: Great - Great ## Features - Ultra-Fine ceramic triangular rods for the Spyderco Sharpmaker sharpening system. Durable ABS plastic base - Provides professional-grade finishing and polishing of sharpened edges for maximum sharpness - Designed for use with all blade edges - Made in the USA - Designed for both dry and wet use ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0019JTNDQ | | Batteries included? | No | | Best Sellers Rank | 929,942 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 710 in Manual Knife Sharpeners | | Brand | Spyderco | | Color | White | | Customer Reviews | 4.5 4.5 out of 5 stars (1,147) | | Date First Available | 19 Feb. 2010 | | Department | Unisex | | Included components | see in description | | Is discontinued by manufacturer | Yes | | Item display length | 17.78 centimetres | | Item model number | 4640171 | | Manufacturer | Spyderco | | Material type | Ceramic | | Number of items | 1 | | Number of pieces | 1 | | Product Dimensions | 17.78 x 1.27 x 1.27 cm; 50.8 g | | Seasons | continuity 2015 | | Size | Small | | Skill level | professional | | Style | Replacement Stone | | Usage | fishing | | Weight | 2.2 Kilograms | ## Product Details - **Brand:** Spyderco - **Colour:** White - **Global Trade Identification Number:** 00716104640171 - **Grit type:** Fine Grit,Ultra,Ultra-fine,Fine - **Item weight:** 50.8 Grams - **Manufacturer:** Spyderco - **Material:** Ceramic - **Number of items:** 1 - **Product dimensions:** 17.8L x 1.3W x 1.3H centimetres - **UPC:** 716104640171 ## Images ![SPY-204UF1 Tri-Angle Ultra Fine Stone-White, Small | Accessory stones for sharpening, refining and polishing edges - Image 1](https://m.media-amazon.com/images/I/41-0j0eJQ+L.jpg) ## Questions & Answers **Q: What is the grit of this stone?** A: According to the micron chart on The Gritomatic website the Medium Stone is approximately 800-1000-grit, Fine is 2,000-3,000, Ultra fine 4,000-5,000 JIS grit. **Q: When you get your blade to the sharpness that it is time to use the Ultra Fine triangle stone about how many stroke on average do it take to finish?** A: I use 40 or more strokes - at least two sets of 20 with every other stroke on the opposite side (i.e. stroke #1 on the right, stroke #2 on the left, and so on). Also, when I get to using the Ultra Fine Triangle stones, I taper off on the pressure I use, using lighter strokes the more strokes I use (although I don't have any scientific evidence to back this up, my intuition tells me that this allows the the stones to put a sharper edge on the blade). I have never been able to achieve the results shown on the videos of this sharpener being used on youtube. I got the best results with the best steel - an ESEE Izula in Damascus steel. With other steels, going from the Fine to the Ultra fine only dulled the edge. With some steels, going from the medium coarse (the dark brown stones) to the Fine dulled the edge. I don't know why this could be happening.I used the 30 degree setting on the Sharpmaker for the Izula although ESEE says the correct sharpening angle for the Izula is 20 degrees. That's the main problem with the Sharpmaker; the number of correct sharpening angles for knives is much greater than just two. Only problem is to get the exact sharpening angles, you have to go with the Wicked Edge Pro Pack I or II, and the II is $749.00. **Q: In the description it say "rods" as in 2. But the picture it shows only 1. My spyderco needs 2 rods. Which is it? Thanks** A: Oddly enough, these rods are sold individually. You need to buy 2 unless you intend to use it like a strop. Funny thing is, the diamond rods are sold in pairs. You should need only one diamond rod (profile one side at a time) . Hope this helps. **Q: Does this sell both the left and right ultra fine sharpener?** A: No, it's only one. To get the pair order two. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Initial impressions first *by 8***R on 9 November 2018* This is my first spyderco stone, and I am pretty impressed, Immediately I took it to a straight razor around the HHT1 in sharpness, With around 50 strokes randomly each side this took it straight up to HHT3 or there abouts, Following this with a strop took it up another notch. Just for trial purposes I just took this dry to my seven day growth in a fairly cold room, no pulling, no popping sounds just a clean shave. Very impressive for this antique razor. I do not have the spyderco sharp system, I bought this stone to test the stone quality, I will be testing this next by rigging it to polish a zdp stretch and see how far this alone takes it. It's already a high polish edge from other stones but not this high a grit. ### ⭐⭐⭐⭐⭐ Great *by T***G on 3 March 2026* Great ### ⭐⭐⭐⭐⭐ PERFECT for the job! *by Q***Q on 1 March 2026* Exactly as ordered ## Frequently Bought Together - Spyderco - Tri-Angle White Sharpening Stone with Ultra-Fine-Grit for Professional-Grade Finishing and Polishing - 204UF1 - Spyderco Tri-Angle Sharpmaker, Complete Knife Sharpening System with Medium Grit and Fine Ceramic Stones for Professional-Grade Finishing - Compact, Easy-to-Use Design - 204MF - Spyderco - Tri-Angle Diamond Sharpening Stones for Professional-Grade Finishing and Polishing - 2-Pack - 204D --- ## 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.ec/products/48336104-spy-204uf1-tri-angle-ultra-fine-stone-white-small-accessory](https://www.desertcart.ec/products/48336104-spy-204uf1-tri-angle-ultra-fine-stone-white-small-accessory) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-07-17*