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These are the natural stones I have tested on tools — chisels, plane blades and other woodworking steel. For tools you usually want a hard stone with a clean flat surface and no lines, and that is what I put in here.
Each stone has its own description with relative hardness and best use. If there are toxic lines or inclusions I write it. If nothing is written, there are none.
Naguras and flattening stones are in Finger Stones and Naguras. If you are not sure which stone fits your tools, email me before you buy.
How to use a natural stone | Grit, fines and hardness explained | Read Stone Recommendations
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Products List
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Nakayama Maruka Maruichi Asagi Kamisori Lv 5 (a3663)
€1,077.09Super beautiful Old Stock Nakayama Maruka from Maruichi Very Hard and super smooth stone ! Without any toxic Lines or inclusions at all !Final finisher for Kamisori and Razors ! It is very difficult... -
Nakayama Maruichi Kiita Kamisori Lv 5 (a3662)
€877.06Super beautiful Old Stock Nakayama from Maruichi, Kiita with Some Asagi pattern as well Very Hard and super smooth stone ! Without any toxic Lines or inclusions at all !Final finisher for Kamisori... -
Asano Koma Nagura (a3653)
€892.45Asano Koma Nagura 1270g Asano Koma Nagura is Rare in small size but this Huge bench sized stone is crazy Rare And I think it is first time I got Batch like That with Huge Koma Nagura from Asano I... -
Asano Koma Nagura (a3652)
€1,230.96Asano Koma Nagura 1840g Asano Koma Nagura is Rare in small size but this Huge bench sized stone is crazy Rare And I think it is first time I got Batch like That with Huge Koma Nagura from Asano I... -
Asano Koma Nagura (a3651)
€1,384.83Asano Koma Nagura 2000g Asano Koma Nagura is Rare in small size but this Huge bench sized stone is crazy Rare And I think it is first time I got Batch like That with Huge Koma Nagura from Asano I... -
Asano Koma Nagura (a3650)
€1,846.44Asano Koma Nagura 2640g Asano Koma Nagura is Rare in small size but this Huge bench sized stone is crazy Rare And I think it is first time I got Batch like That with Huge Koma Nagura from Asano I... -
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Nakayama Koppa Lv 5+ (a3649)
€123.10Old Stock Nakayama Koppa Koppa is unusually size, raw corners and smaller size Good way to try out Rare Nakayama stones Without any toxic inclusions or lines Max size: 160mm 80mm 25mm -
Nakayama Koppa Lv 4,5 (a3648)
€123.10Old Stock Nakayama Koppa Koppa is unusually size, raw corners and smaller size Good way to try out Rare Nakayama stones Without any toxic inclusions or lines Max size: 130mm 110mm 12mm -
Nakayama Koppa Lv 5 (a3643)
€153.87Old Stock Nakayama Koppa Koppa is unusually size, raw corners and smaller size Good way to try out Rare Nakayama stones Without any toxic inclusions or lines Max size: 150mm 85mm 17mm -
Nakayama Asagi Maruichi Kamisori Lv 4,5 (a3633)
€1,307.90Super beautiful Nakayama from Maruichi Super clean and big stone ! Very rare that they come that big in Full size This one is super special as it is not often I get Nakayama Maruichi that can also be... -
Ohira Range Suita Lv 3,5 (a3620)
€2,461.92I rarely get them now but got a chance to get Ohira Range Suita white with some range patter Very smooth and feels super nice. Medium hardness not to soft not to hard ! perfect for tools and... -
Tanaka Ozuku Mizu Asagi lv 5+ (a3607)
€507.77Very rare Old Stock Ozuku from Tanaka Toishi from Kyoto, those are old stock and he do not have any more of those Without any toxic inclusions, cracks or lines at all ! Very clean stone Not much to... -
Tanaka Ozuku Mizu Asagi lv 5+ (a3604)
€507.77Very rare Old Stock Ozuku from Tanaka Toishi from Kyoto, those are old stock and he do not have any more of those Without any toxic inclusions, cracks or lines at all ! Very clean stone Not much to... -
Atagoyama Huge Lv 3,5 (a3601)
€1,846.44Old stock Atagoyama, Super big stone and will be crazy hard to fine Fast and Medium Hardness stone with very light color feels super smooth and creamy Very nice stone for fine Kasumi finish and also... -
Oohira Ooban Lv 3,5 (a3600)
€1,077.09Old stock Ohira Ooban Ooban is size of the stones and very rare for Japanese Natural stones Fast and Medium Hardness stone Very nice stone for fine Kasumi finish and also makes crazy sharp and fine... -
Oohira Ooban Lv 3,5 (a3598)
€1,307.90Old stock Ohira Ooban Ooban is size of the stones and very rare for Japanese Natural stones Fast and Medium Hardness stone Very nice stone for fine Kasumi finish and also makes crazy sharp and fine... -
Oohira Ooban Lv 3,5 (a3597)
€1,307.90Old stock Ohira Ooban Ooban is size of the stones and very rare for Japanese Natural stones Fast and Medium Hardness stone Very nice stone for fine Kasumi finish and also makes crazy sharp and fine... -
Kizuyama lv 3,5 (a3596)
€1,154.03Very Rare Kizuyama Stone That super light color and amazing for knives Makes crazy sharp edge but also good for very fine Kasumi finish Very clean stone without any toxic lines or inclusions... -
Kizuyama Ooban lv 4 (a3594)
€2,154.18Very Rare Kizuyama Stone with Amazing pattern parallel stripes of different colours ! Ooban is size of the stone and they are crazy rareVery smooth and very fine stone ! on Harder side You don't... -
Shinden Lv 4,5 (a3586)
€769.35Very rare That I get Shinden now a daysShinden makes some harder stones that tool users love make super fine edge Can be used for Razors and Knives, Best with Nagura for knives Shinden stones is very...
