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Please note Naniwa recently changed the name of this stone from the Chosera 400 to the Naniwa Professional 400. In the never ending debate about which water stones are best, the Naniwa Chosera are a perennial contenders thanks to their outstanding performance. This 400 grit Chosera is hard, cuts quickly, and wears slowly. As the coarsest stone in the Chosera lineup the 400 is used for fast steel removal when repairing damaged edges, thinning knives, and resetting bevels. All Chosera stones are splash and go and the manufacturer recommends a quick soak. Don't perma soak these stones. The stone measures 210mm x 70mm x 20mm.
Reviews
14 review(s) WRITE A REVIEW (Reviews are subject to approval) Great first stone for bevels, April 18, 2024 Nice addition to the setPosted By: Gordon Tillman - verified customer
5 people found this review helpful
I already had the 800 and 3000 grit stones from Naniwa and wanted something a bit coarser to help with thinning and establishing a new primary edge. This stone has been working great.
5 people found this review helpful
I already had the 800 and 3000 grit stones from Naniwa and wanted something a bit coarser to help with thinning and establishing a new primary edge. This stone has been working great.
Great Stone
Quick cutting, minimal soaking neededPosted By: Dave Conner - verified customer
2 people found this review helpful
Very happy, using this then bumping up to a 1k stone followed by the 2k green brick and finishing on the Richmond strop set up. 15-16 knives in and no cupping. Quick to make a fast cutting slurry, quick soak and cleanup in between knives. Super fast shipping, came well packaged and undamaged.
2 people found this review helpful
Very happy, using this then bumping up to a 1k stone followed by the 2k green brick and finishing on the Richmond strop set up. 15-16 knives in and no cupping. Quick to make a fast cutting slurry, quick soak and cleanup in between knives. Super fast shipping, came well packaged and undamaged.
Fast cutting stone Nice StonePosted By: Scott Walker - verified customer
2 people found this review helpful
I purchased this stone to use on very dull knives and damaged blades. The feel and feed back of this 400 grit stone is outstanding. I just finished setting the edge and sharpening a brand new inexpensive Chef's knife for my son. I was able to quickly create a burr with the 400, moved on to my Naniwa 800 and then to the Naniwa 3K. I was very pleased (and so was my son)with the quality and sharpness these three stone created on the blade edge. It was a pleasure to use.
2 people found this review helpful
I purchased this stone to use on very dull knives and damaged blades. The feel and feed back of this 400 grit stone is outstanding. I just finished setting the edge and sharpening a brand new inexpensive Chef's knife for my son. I was able to quickly create a burr with the 400, moved on to my Naniwa 800 and then to the Naniwa 3K. I was very pleased (and so was my son)with the quality and sharpness these three stone created on the blade edge. It was a pleasure to use.
Great StonePosted By: Scott Walker - verified customer
4 people found this review helpful
This is an excellent stone. It is very aggressive, but smooth, with good feedback. Because of this I only use it to repair damage to a blade or set an edge on a very dull blade. I can then move on to my Chosera 800 and then to the 3K. The combination of these three stones gives me an edge on my Chef Knives that is truly amazing.
4 people found this review helpful
This is an excellent stone. It is very aggressive, but smooth, with good feedback. Because of this I only use it to repair damage to a blade or set an edge on a very dull blade. I can then move on to my Chosera 800 and then to the 3K. The combination of these three stones gives me an edge on my Chef Knives that is truly amazing.
Wonderful product Positive Stone ReviewPosted By: Chef Mark - verified customer
4 people found this review helpful
See prior review on the naniwa/chosera 2000 grit. As noted, I saved up additional funds over the past month and purchased both the 400 and 800 grit chosera professional. Since I had already sharpened all my knives, I took 4 of my oldest paring knives and dulled the blades on the side of an old Arkansas stone. Starting from scratch, I progressed through the 400 to the 800 and finished on the 2000. After only a few minutes, I had obtained a shave-worthy edge on the paring knives with a mirror finish. Love the splash and go nature of the stones which transcends into an A+ rating on ease of use. Gave all three stones a resounding five star rating.
4 people found this review helpful
See prior review on the naniwa/chosera 2000 grit. As noted, I saved up additional funds over the past month and purchased both the 400 and 800 grit chosera professional. Since I had already sharpened all my knives, I took 4 of my oldest paring knives and dulled the blades on the side of an old Arkansas stone. Starting from scratch, I progressed through the 400 to the 800 and finished on the 2000. After only a few minutes, I had obtained a shave-worthy edge on the paring knives with a mirror finish. Love the splash and go nature of the stones which transcends into an A+ rating on ease of use. Gave all three stones a resounding five star rating.
cuts really good Product ReviewPosted By: Tom?s - verified customer
2 people found this review helpful
Bought this stone as a rough grit to a AS kohetsu. Tried it today, and i was impressed how fast it cuts and that the edge that it leaves is not rough at all! I read somethings, and this is a splash and go, so when you buy it, don't soak, it may crack. I recommend it for everyone.Greetings,Tom?s
2 people found this review helpful
Bought this stone as a rough grit to a AS kohetsu. Tried it today, and i was impressed how fast it cuts and that the edge that it leaves is not rough at all! I read somethings, and this is a splash and go, so when you buy it, don't soak, it may crack. I recommend it for everyone.Greetings,Tom?s
Product Review Product ReviewPosted By: Jon - verified customer
3 people found this review helpful
This stone is a beast. When I first got it, I set bevels and removed chips on over two dozen blades (mostly friends' neglected knives) before I began to notice the dishing. Very hard, cuts fast, dishes slowly. Excellent coarse grit stone, and feels smoother than 400 when you work with it.
3 people found this review helpful
This stone is a beast. When I first got it, I set bevels and removed chips on over two dozen blades (mostly friends' neglected knives) before I began to notice the dishing. Very hard, cuts fast, dishes slowly. Excellent coarse grit stone, and feels smoother than 400 when you work with it.
