

🛠️ Sharpen smarter, not harder — stay razor-ready with Norton Crystolon!
The Norton Crystolon Abrasive Machine Knife Stone is a dual-grit silicon carbide sharpening stone (100 coarse / 280 fine) designed for efficient edge repair and honing of machine knives and cutting tools. Its 4" diameter and 1.5" thickness provide a compact, ergonomic grip enhanced by a protective groove, making it ideal for professional use in machine shops, paper, and cloth-cutting environments. Durable and versatile, it delivers fast sharpening and smooth finishes, ensuring your blades stay precision-sharp and ready for action.
| ASIN | B000RU8TQA |
| Best Sellers Rank | #220,630 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #427 in Sharpening Stones |
| Brand | Norton |
| Color | Silver |
| Date First Available | June 11, 2007 |
| Grit Type | Fine |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | 61463687570 |
| Manufacturer | St. Gobain Abrasives |
| Material | Carborundum |
| Number of Items | 1 |
| Product Dimensions | 4"L x 4"W x 1.5"H |
| UPC | 614636875705 |
B**N
Great for a machine shop
This is exactly what I needed for cleaning up the surface of my milling machines. The stone has dual grit, which isn't really that useful, but I suppose the rough side could be used for larger burrs and oopsies on the mill. The fine side is perfect for finding and smoothing down the mill table. It's also useful for cleaning up the bottom of Kurt vices and any other part of a machine tool that should be flat.
G**Y
Blanchard surface stone.
Perfect for work on grinding tables. Removes burrs and high spots with coarse or smooth surfaces. Works best on Blanchard magnetic table surfaces. Long lasting as well. Fits in your hand with ease.
T**D
It is a real Norton's stone.
I saw a few reviews saying questioning its authenticity of being a Nortons product. I can confirm it is a real Norton's stone. I was a little nervous since seeing the reviews myself but still took and chance. Using this for my mill and CNC
A**R
good purchase
as advertised and as expected, durable, good buy
T**S
Great stone
We use these for light debur of parts in a machine shop. The heavy grit side to remove heavy burrs, the light grit side to really smooth edges and get a fine finish on surfaces.
A**W
Fits well in the hand.
I use these to stone the burr on my CNC. I like the groove, it’s easy to hold. The size is perfect to manipulate. I use the fine side the most but it’s nice having a course side Incase a burr is particularly nasty. Norton is the Bomb.
B**N
Strange purchase
It was a pack of 5 units. They shipped one single unit, then I called to get it fixed. They sent me another one, then I called again. On the third shipment, I got the remaining 3 items...A little shaky organisation!
A**O
Not what I expected
Not what I expected. Doesn't appear to be a genuine Norton product as advertised. The radius groove on the side is very shallow. The stone itself didn't come with any Norton packagine, was shipped to me in a brown paper with popcorn stuffing in a shipping box. Nothing to identify as a Norton product. However it seems to be a decent stone and will still do the job fine, I just was expecting a Norton product.
Trustpilot
2 weeks ago
3 weeks ago