Sharp PebbleLarge Flattening Stone- Dual Grit Coarse/Fine Sharpening Stones Flattener- Diamond Grooves Whetstone Fixer-Re Level Any Whetstones & Waterstones

Flattened my stone in time. Good stuff. If you have a single bevel knife, you're gonna need this to keep your sharpening stone in top shape.

The Sharp Pebble Large Flattening Stone offers a unique dual-grit system (120/320) with a diamond groove pattern designed for efficiently flattening various sharpening stones, including waterstones, oil stones, and ceramic stones. Its extra-large size provides ample surface area. Made from durable silicon carbide, it aims for quick material removal on the coarse side and a finer finish on the other. This stone appears to be a robust and versatile tool for maintaining the flatness of your sharpening stones.This review represents my personal opinion and experience with this product. I am not affiliated with the manufacturer or seller, and this review should not be interpreted as an endorsement or professional advice. Any reliance on the information provided is at your own risk.

I recently bought the Flattening Stone from Sharp Pebble after having been very impressed with their other products. I used the FS on a small waterstone and was very happy with the results, it cleaned it up very quickly. That said, I was surprised to see that the FS has been worn down significantly. I had planned on using it on many of my older stones but realized it would be gone in no time if it wore in the manner it did with the first stone. I contacted Salma at Sharp Pebble with my concerns and she was very helpful. She explained that the FS I received must have been defective and replaced it with a new stone. The new FS arrives and worked perfectly with almost no visible wear. I would give the new FS 5 stars but because of the issues with the first stone, I’m staying at 4 stars. Sharp Pebble is awesome.

Works with a lot of effort for the worn out stones to flatten, but worth the money and good product over all.

This works well for dressing the sharpening stone on my Tormek sharpener. Before using it I checked flatness on a machinist granite plate. Don't need it often, but it does the job!

I had purchased one of these about a year ago without any issue and recently needed a second one at another location, so figured I would pick up another of the same.The Flattening Stone arrived looking fine but it wasn't until I used it that I saw my sharpening stones were not being flattened evenly. I inspected the flattening stone and noticed it had a significant concave on the smoother side.Figuring there were bound to be some discrepancies in manufacturing, I opted to return it and try another. Which also arrived looking fine, but this time had a as bad/or worse concave on the coarse side.Two in a row is enough for me to want to look elsewhere, which is a shame as Sharp Pebble seemed like it a decent enough brand, but if the entire purpose of the product is to be flat in order to make something else flat... I would hope they would take the time to make sure the stones were at least, well... Flat.

Product does exactly as advertised, flattens old stones like nobody's business. Remember to flip sides depending on the grit of your stone. The fine side of the flattening stone was plenty good to re-finish my 8000 grit stone to factory finish, and the coarse side was plenty good at grinding away my 220 grit stone.Would buy again, but i think this one's going to last me a while :-D

Works as intended.