Please note: Naniwa has updated the name of this stone from the Chosera 800 to the Naniwa Chosera Pro 800 (sometimes spelled Chocera). The stone itself remains the same trusted formulation.
Coarser grit stones are often overlooked, yet they play a critical role in an effective sharpening progression. The Naniwa Chosera Pro 800 excels at the early stages of sharpening by removing steel quickly and efficiently, making it ideal for edge repairs, minor chips, and setting a clean, consistent bevel without excessive effort. By reducing sharpening time and fatigue, it helps freehand sharpeners maintain better angle control and achieve higher-quality edges.
This 800 grit stone neatly bridges the gap between very aggressive repair stones and the more common 1,000-grit stones where many progressions begin. Like all stones in the Chosera Pro line, it is fast cutting, slow to dish, and produces a refined scratch pattern that polishes above its grit rating. The feedback is excellent, making it a favorite among experienced sharpeners who want speed without sacrificing control.
The Chosera Pro 800 is a true splash-and-go stone. Soaking is not recommended, as the resin-bonded composition is designed to perform optimally with only a light surface wetting.
Stone Size: 210mm x 70mm x 20mm
Coarser grit stones are often overlooked, yet they play a critical role in an effective sharpening progression. The Naniwa Chosera Pro 800 excels at the early stages of sharpening by removing steel quickly and efficiently, making it ideal for edge repairs, minor chips, and setting a clean, consistent bevel without excessive effort. By reducing sharpening time and fatigue, it helps freehand sharpeners maintain better angle control and achieve higher-quality edges.
This 800 grit stone neatly bridges the gap between very aggressive repair stones and the more common 1,000-grit stones where many progressions begin. Like all stones in the Chosera Pro line, it is fast cutting, slow to dish, and produces a refined scratch pattern that polishes above its grit rating. The feedback is excellent, making it a favorite among experienced sharpeners who want speed without sacrificing control.
The Chosera Pro 800 is a true splash-and-go stone. Soaking is not recommended, as the resin-bonded composition is designed to perform optimally with only a light surface wetting.
Stone Size: 210mm x 70mm x 20mm
y vary, in most cases, I believe you could go to the same stones from this that you would go to from a 1k. On edges that are either small, hollow ground, or micro beveled, I've been jumping from it all the way up to my Snow White 8k. This may not work for you knife and razor guys, but many of us woodworkers love being able to do these big jumps. On larger areas of steel, such as blade backs, I put my Sigma Power 6k into the mix, and while it does take out the 800 scratches without any trouble, I'm thinking a Chosera 3k, which I've used but do not own, would be an ideal stone to follow the 800. I was expecting this stone to be quite thirsty, and while it works best with a soak, it works quite well with a heavy splash; the water tends to sit on top for a while rather than being sucked into the stone right away. Also, because it is relatively hard and fast it really helps you to get your edge geometry correct at the get go. So far I'm also finding this stone less prone to overloading and clogging than some of the other Chosera's I've used, and I think I like it a little better than the Chosera 1k, which I don't own, but have used a number of times and quite like also. This stone doesn't get a lot of press, presumably because it is an 800 where as 1k's tend to be more popular, but keep in mind that a Shapton 1k is also technically an 800 grit stone under the current JIS rating system. If you are looking for a ?medium? grit foundational stone, the Chosera 800 is a serious force to reckoned with. I highly recommend it!
Product ReviewPosted By: Chris Griggs - verified customer
12 people found this review helpful
I purchased this stone to use as a more aggressive alternative to my Sigma Power 1k. I'm finding it to be a great foundation stone for resharpening edges that need a bit more than just a quick touchup. I would categorize it as a 1k on steroids, as it does the same job just faster. It also has that same lovely, consistent, and smooth feel of the whole Chosera line. It's quite fast, especially when freshly lapped, and while it does leave slightly coarser scratches then a 1k, it is still fine enough that I can use it in the same progression in which I was using my Sigma 1k. While your mileage may vary, in most cases, I believe you could go to the same stones from this that you would go to from a 1k. On edges that are either small, hollow ground, or micro beveled, I've been jumping from it all the way up to my Snow White 8k. This may not work for you knife and razor guys, but many of us woodworkers love being able to do these big jumps. On larger areas of steel, such as blade backs, I put my Sigma Power 6k into the mix, and while it does take out the 800 scratches without any trouble, I'm thinking a Chosera 3k, which I've used but do not own, would be an ideal stone to follow the 800. I was expecting this stone to be quite thirsty, and while it works best with a soak, it works quite well with a heavy splash; the water tends to sit on top for a while rather than being sucked into the stone right away. Also, because it is relatively hard and fast it really helps you to get your edge geometry correct at the get go. So far I'm also finding this stone less prone to overloading and clogging than some of the other Chosera's I've used, and I think I like it a little better than the Chosera 1k, which I don't own, but have used a number of times and quite like also. This stone doesn't get a lot of press, presumably because it is an 800 where as 1k's tend to be more popular, but keep in mind that a Shapton 1k is also technically an 800 grit stone under the current JIS rating system. If you are looking for a ?medium? grit foundational stone, the Chosera 800 is a serious force to reckoned with. I highly recommend it!
12 people found this review helpful
I purchased this stone to use as a more aggressive alternative to my Sigma Power 1k. I'm finding it to be a great foundation stone for resharpening edges that need a bit more than just a quick touchup. I would categorize it as a 1k on steroids, as it does the same job just faster. It also has that same lovely, consistent, and smooth feel of the whole Chosera line. It's quite fast, especially when freshly lapped, and while it does leave slightly coarser scratches then a 1k, it is still fine enough that I can use it in the same progression in which I was using my Sigma 1k. While your mileage may vary, in most cases, I believe you could go to the same stones from this that you would go to from a 1k. On edges that are either small, hollow ground, or micro beveled, I've been jumping from it all the way up to my Snow White 8k. This may not work for you knife and razor guys, but many of us woodworkers love being able to do these big jumps. On larger areas of steel, such as blade backs, I put my Sigma Power 6k into the mix, and while it does take out the 800 scratches without any trouble, I'm thinking a Chosera 3k, which I've used but do not own, would be an ideal stone to follow the 800. I was expecting this stone to be quite thirsty, and while it works best with a soak, it works quite well with a heavy splash; the water tends to sit on top for a while rather than being sucked into the stone right away. Also, because it is relatively hard and fast it really helps you to get your edge geometry correct at the get go. So far I'm also finding this stone less prone to overloading and clogging than some of the other Chosera's I've used, and I think I like it a little better than the Chosera 1k, which I don't own, but have used a number of times and quite like also. This stone doesn't get a lot of press, presumably because it is an 800 where as 1k's tend to be more popular, but keep in mind that a Shapton 1k is also technically an 800 grit stone under the current JIS rating system. If you are looking for a ?medium? grit foundational stone, the Chosera 800 is a serious force to reckoned with. I highly recommend it!
Product ReviewPosted By: Chris Griggs - verified customer
12 people found this review helpful
I purchased this stone to use as a more aggressive alternative to my Sigma Power 1k. I'm finding it to be a great foundation stone for resharpening edges that need a bit more than just a quick touchup. I would categorize it as a 1k on steroids, as it does the same job just faster. It also has that same lovely, consistent, and smooth feel of the whole Chosera line. It's quite fast, especially when freshly lapped, and while it does leave slightly coarser scratches then a 1k, it is still fine enough that I can use it in the same progression in which I was using my Sigma 1k. While your mileage may vary, in most cases, I believe you could go to the same stones from this that you would go to from a 1k. On edges that are either small, hollow ground, or micro beveled, I've been jumping from it all the way up to my Snow White 8k. This may not work for you knife and razor guys, but many of us woodworkers love being able to do these big jumps. On larger areas of steel, such as blade backs, I put my Sigma Power 6k into the mix, and while it does take out the 800 scratches without any trouble, I'm thinking a Chosera 3k, which I've used but do not own, would be an ideal stone to follow the 800. I was expecting this stone to be quite thirsty, and while it works best with a soak, it works quite well with a heavy splash; the water tends to sit on top for a while rather than being sucked into the stone right away. Also, because it is relatively hard and fast it really helps you to get your edge geometry correct at the get go. So far I'm also finding this stone less prone to overloading and clogging than some of the other Chosera's I've used, and I think I like it a little better than the Chosera 1k, which I don't own, but have used a number of times and quite like also. This stone doesn't get a lot of press, presumably because it is an 800 where as 1k's tend to be more popular, but keep in mind that a Shapton 1k is also technically an 800 grit stone under the current JIS rating system. If you are looking for a ?medium? grit foundational stone, the Chosera 800 is a serious force to reckoned with. I highly recommend it!
12 people found this review helpful
I purchased this stone to use as a more aggressive alternative to my Sigma Power 1k. I'm finding it to be a great foundation stone for resharpening edges that need a bit more than just a quick touchup. I would categorize it as a 1k on steroids, as it does the same job just faster. It also has that same lovely, consistent, and smooth feel of the whole Chosera line. It's quite fast, especially when freshly lapped, and while it does leave slightly coarser scratches then a 1k, it is still fine enough that I can use it in the same progression in which I was using my Sigma 1k. While your mileage may vary, in most cases, I believe you could go to the same stones from this that you would go to from a 1k. On edges that are either small, hollow ground, or micro beveled, I've been jumping from it all the way up to my Snow White 8k. This may not work for you knife and razor guys, but many of us woodworkers love being able to do these big jumps. On larger areas of steel, such as blade backs, I put my Sigma Power 6k into the mix, and while it does take out the 800 scratches without any trouble, I'm thinking a Chosera 3k, which I've used but do not own, would be an ideal stone to follow the 800. I was expecting this stone to be quite thirsty, and while it works best with a soak, it works quite well with a heavy splash; the water tends to sit on top for a while rather than being sucked into the stone right away. Also, because it is relatively hard and fast it really helps you to get your edge geometry correct at the get go. So far I'm also finding this stone less prone to overloading and clogging than some of the other Chosera's I've used, and I think I like it a little better than the Chosera 1k, which I don't own, but have used a number of times and quite like also. This stone doesn't get a lot of press, presumably because it is an 800 where as 1k's tend to be more popular, but keep in mind that a Shapton 1k is also technically an 800 grit stone under the current JIS rating system. If you are looking for a ?medium? grit foundational stone, the Chosera 800 is a serious force to reckoned with. I highly recommend it!
