Using the standard rods i was able to get a decent edge on my knives but with the ultra-fine they are hair whittling sharp! Both sides were warped. Prime members enjoy Free Two-Day Shipping, Free Same-Day or One-Day Delivery to select areas, Prime Video, Prime Music, Prime Reading, and more. These rods will put a near mirror finish on the cutting edge of a knife. I was so happy to find this single rod so I did not need to purchase 2. The stone is used dry, so no oil or water needed. Mine was extremely warped. I was able to get a mirror-like finish on my CPM S30V steel with minimal effort. That's plenty for any of my knives. Good workout though. Find helpful customer reviews and review ratings for 4640171 Spyderco Tri-Angle Stone - Ultra Fine at Amazon.com. Read honest and unbiased product reviews from our users. These are great. I agree with other poster that it needs significant lapping. There's a problem loading this menu right now. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. Read honest and unbiased product reviews … For most, this is probably as fine as they will want to go, the "tooth" that is left at the end of slow and careful use of this stone is perfect for skinning. Reviewed in the United States on January 22, 2015. IMHO Nope.. Both side have small ridges - around 0.2mm height and 3mm x 60mm - obviously from grinding wheel. They work great. (Official company reply) Thank you for taking the time to contact us. Fast, FREE delivery, video streaming, music, and much more. I just got this yesterday and put it to the test. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Mine actually sagged in the middle on one side and was high in the middle on the other. Disabling it will result in some disabled or missing features. For kitchen knives/fillet knives its awesome on 30°.. The ultra fine stone cleans the edge and makes the blade incredibly sharp. Your recently viewed items and featured recommendations, Select the department you want to search in. When the stone gets dirty it can be easily cleaned with an abrasive soap and water. This page works best with JavaScript. Please make sure that you are posting in the form of a question. Find helpful customer reviews and review ratings for Spyderco - Tri-Angle White Sharpening Stone with Ultra-Fine-Grit for Professional-Grade Finishing and Polishing - 204UF1 at Amazon.com. You can edit your question or post anyway. You can still see all customer reviews for the product. If you want to go finer, you will have to get a strop and polishing compound. An excellent choice if you want to go that extra mile and really put a nice finish on your blade. Use light pressure and let the rods do what they are designed to do. I am using the DMT Coarse stone and after an hour I'm close but not quite there yet. Since the stones are high Lumina bonded in ceramic, they cannot be grit rated like other stones. Spyderco Triangle Sharpmaker Ultra Fine Grit Rod My personal knives and carving tools are well matched to these tools but I need to get better kitchen knives and put them where no one else will get fingers lost from them. The ultra-fine rods for the spyderco sharp-maker are an excellent addition. Then let the stone dry and put away in the leather storage pouch. High Lumina is graded as a man-made sapphire. A must have accessory for the Sharpmaker. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. Really nice edge on my fillet knife. Find helpful customer reviews and review ratings for Spyderco - Ultra Fine - Benchstone Sharpening Stone with Leather Sleeve - 306UF at Amazon.com. I use this ceramic stone for carving knives and a drawknife instead of honing to keep a sharp edge. You could see the curve with the naked eye. brien. Mine was extremely warped. Reviewed in the United States on July 13, 2017. It also analyzes reviews to verify trustworthiness. I strop with green paste 30K and then diamond 0.5 micron, 60K grit. Please make sure that you've entered a valid question. OMG! I find anything more would not hold a very sharp edge to long and require more frequent sharpening. You can still see all customer reviews for the product. I would suggest getting the diamond rods as well, that way you will be able to handle any sharpening job that comes your way. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. Well worth it if you need a very fine edge, The very best sharpening system that I have ever used, The very best sharpening system that I have ever used. As expensive as these are why is it that these are not totally flat. Reviewed in the United States on July 28, 2020. It cuts very quickly. Excellent part of sharpening sequence but don't stop here. 2hrs later, I got 1 side almost flat except for 2 edge sag strips 0.1mm deep x 5mm x 75mm and 0.1mm deep x 3mm x 40mm. To clean the stone, we recommend using Comet or Ajax and a green nylon scrub pad with water. This is an excellent stone that fits perfectly between the finest diamond stones and the very very fine preparations that are used with strops. Unlike honing with leather, paper or any other flexible material that establishes a micro bevel which eventually rounds over and requires the blade to be resharpened , this stone maintains the primary cutting bevel like new. I don’t have a diamond lapping plate to correct it and even if I did I would be taking off about a 16th of an inch of stone. Disabling it will result in some disabled or missing features. There is no excuse. The last step short of stropping to finish sharpening a fine grained steel blade.