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The Norton 100/320-grit combination oilstone is made of aluminum oxide with 100 grit on one face for repairing steel cutting edges and 320 grit on the opposite face for sharpening and maintaining them; it produces durable, smooth-cutting edges, and is preferred for close tolerances. The stone is prefilled with oil to save time and eliminate the need to presoak it prior to use. The oil prevents metal from bonding with the abrasive surface by flushing away dislodged abrasive and metal chips. This oilstone is commonly used to restore cutting edges on small straight-edged tools such as chisels, knives, plane blades, and precision instruments.
This aluminum oxide stone has a tough fracture- and wear-resistant grit that is more durable than silicon carbide and capable of sharpening to very close tolerances. It is created by grading aluminum oxide to a consistent particle size and blending it with bonding agents. It is then molded and surface-finished. This 1 x 6 x 2 inch (H x W x D) stone, suitable for bench use, is harder and more durable than a waterstone. (H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.) It conforms to the American National Standards Institute (ANSI) abrasive grit standards.
Sharpening stones, or whetstones, are abrasive surfaces used to sharpen and hone the edges of steel cutting implements, such as chisels, knives, scissors, hand scrapers, and plane blades. Sharpening is the process of creating or re-establishing a cutting edge by grinding away portions of the metal to adjust the angle of the edge and reform the shape. Honing removes small imperfections. Stones can be flat, for working flat edges, or shaped, for edges that are more complex. Sharpening stones are made of natural or synthetic materials that range from softer to harder, and are categorized by the size of their abrasive particles, known as grit. A stone with a coarser grit is used when more metal needs to be removed (e.g., when sharpening a nicked or very dull blade); the stone with the finest grit produces the sharpest edge. Where numbers are assigned to specify grit, they range from coarser grit (low) to finer grit (high). Some sharpening stones are designed for use with a lubricating liquid, some can be used dry, and others can be used either wet or dry. When used with lubricating liquid, a sharpening stone can be called a waterstone or an oilstone, based on the lubricant required.
Norton Abrasives manufactures sanding, grinding, and polishing abrasives, and has been located in the United States since 1885. Norton, now a brand of Saint-Gobain, meets ISO 9000 and 14001 certification for quality and environmental management standards.
Pascal35
Reviewed in France on March 14, 2025
Produit conforme à sa description et arrivé parfaitement protégé. Exactement ce que je voulais : merci !
Customer
Reviewed in the United States on January 25, 2023
The stone is great. It cuts well as you can feel it bites into the material. It doesn't wear out a lot so the stone geometry wont change much. I bought three of them, two of them arrive normally and i am using them happily.however, for the last one, they sent wrong item twice! i keep getting the black silicon carbide one instead of the aluminum oxide one with one side being orange. this is really annoying since i have to send it back twice for replacement and refund as well. for real amazon, check your warehouse, did you have the wrong label on tray??
James L. Gaither Jr.
Reviewed in the United States on March 4, 2022
The combination of the coarse India and the fine India stones let me touch-up nicks in the cutting edge, then put the final working sharp on the blade. Great for wood chisels, hatchets, kitchen knives, pretty-much any cutting edge. Because of the uses I have for my cutting tools - leather work, fine wood carving - I do not use oil while sharpening. I clean the metal residue from the stone with oil and thoroughly wipe all the oil I can from the stone, in order to keep the oil away from my cutting tools. The fine-side will give you an edge with which you can shave hair off your arm.
Joe Sartor
Reviewed in the United States on February 4, 2021
Same stones I have used most of my life. Great for kitchen knives, keeps blade usefully sharp with just a quick touch no oil, acts as much as a burnish as metal cutting. Very aggressive sharping when used with oil to keep the stone from clogging. If you want razer sharp, you need finer but I don't see why that is needed for a kitchen knife. I only use the course side for thinning down old blades.
Cinzia & co.
Reviewed in Italy on January 17, 2021
La famosa pietra per affilare Norton, doppia grana, da usare con olioPerfetta, presa perchè negli anni 70/80 papà la aveva e affilava perfettamente.Purtropo non ho più ritrovato tale pietra, ma questa è esattamente come quella che ricordavoSi ottiene facilmente un filo molto tagliente, soprattutto se si usa uno strop alla fine conqualche pasta di lucidatura o anche solamente del polish ( sidol )
Casey Brown
Reviewed in the United States on February 28, 2020
This Norton stone works better than any Arkansas stone that I have used. The coarse cuts fast to create an edge, and the fine leaves a very clean and sharp edge that will cut well. Finish with a leather strop, and you will have a shaver.
Daniel
Reviewed in Spain on January 11, 2020
Buena piedra original de la mara norton es la segunda que compro
Todd
Reviewed in the United States on April 13, 2020
Used this to stone internal parts of a Contender as the action was stiff and hard to open. A few passes with this stone and there was immediate improvement. My father is 75 and was having a hard time opening the handgun. This was just the ticket to making it smoother for him. Sits with my gun workbench among the tools. Would buy again.
Gerald Widen
Reviewed in the United States on August 16, 2019
Overall a nice stone and came in a nice cardboard box. I’m taking off a star because the different sides of the stone are not marked in any way as to coarseness. The difference between the two is so close I’m not sure I’m using the finer side
Steve S.
Reviewed in the United States on March 7, 2019
I have four Japanese water stones that are quite good at putting the final edge on my expensive knives but the sharpening "ceremony" involved in taking a knife all the way through to 8K grit is an afternoon eater. I bought this Norton India stone to handle the sharpening duties associated with my EDC knives and my wood carving knives. Many carvers assert that you should only ever need a strop to keep your knives sharp but I don't agree. In 15 minutes, I got 5 flat grind detail and roughing knives and two Scandi grind Mora knives VERY sharp on the fine side of this stone. I finished with a leather strop and was back to carving. I strongly recommend this stone.
Christoff
Reviewed in Canada on December 13, 2019
It is a very good benchstone, cuts quite fast.
Steer
Reviewed in the United Kingdom on January 30, 2019
I was sent the cheaper stone than the one advertised, gutted!
Nick
Reviewed in the United States on February 23, 2018
One of, if not the best table stones out there. Remember to include some high purity / USP mineral oil or similar if you’re stoning your CNC machines table, and don’t press too hard and don’t stay in one spot too long.These are also great for sharpenging chefs, camping, hunting, fishing, and tactical knives. When using on a knife, be sure to use the orange side with some oil, as the brown side might be too much (especially for thinner blades). If using on thicker metal as found in an axe, start with the brown side for dulled axes and then move to the orange side or just start with the orange side for an axe that needs a sharp / fine edge put back on.I have not tried it on a sushi knife, but you might want to get something with an even finer surface for that.
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