




💎 Sharpen smarter, not harder — edge perfection anywhere, anytime!
The DMT 4-inch Extra-Coarse Diamond Whetstone delivers fast, efficient sharpening with its 60 micron monocrystalline diamond surface. Designed for portability and durability, it requires no oil and works dry or wet, making it ideal for professionals and enthusiasts needing quick edge repair on knives and tools. Made in the USA, this whetstone offers years of reliable performance in a compact form factor.
















| ASIN | B00004WFV0 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 248,116 in DIY & Tools ( See Top 100 in DIY & Tools ) 287 in Sharpening Stones |
| Certification | No |
| Colour | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (307) |
| Date First Available | 11 Jan. 2007 |
| Grit Description | Extra Coarse |
| Grit Number | 220 |
| Included Components | Diamond Whetstone |
| Item Package Quantity | 1 |
| Item Weight | 27.2 g |
| Item model number | A4X |
| Manufacturer | DMT |
| Material | Synthetic |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | A4X |
| Product Dimensions | 22.23 x 8.26 x 5.72 cm; 27.22 g |
| Size | One Size |
| Special Features | Manual |
| Style | 4-in. Diamond Whetstone for use with Aligner Extra Coarse |
A**R
Excellent product.
I use this product for putting a final edge before stropping onto my kitchen knives. Believe me they are not razor sharp. As DMT advise the diamond stone takes a short while to bed in but once it does, it works just as it should. Very pleased!
T**I
Very Good
Well made & sharpens my knives like razors. Only problem is would like to purchase one that was big enough to fit a sharpening stone block as this one being hand held does not give you complete control with the angles.
D**Y
Not the advertised/named length
This is sold as a 4 inch whetstone. It's actual length is 4.4", worth noting if you need to mount this in anything that requires a specific length. Otherwise this is very good.
A**R
Small it so useful
I use it as an essential part of my sharpening equipment for my woodturning chisels.
D**O
otimo! ja uso a mais de dez anos as pedras da DMT e vale o investimento.
J**K
Without this stone, I can still get a pretty good edge with just the green X-fine but THIS stone defintely takes my edges to the next level - razor sharp and very polished. At the new price of $14, don't pass up on this. I paid $18 and they dropped the price right afterwards ... grrr :-) Maybe someday I'll also get setup for stropping with some diamond paste or 3m abrasive lapping pads but at the moment I don't feel that these are necessary for me since the DMT xxf does such a great job. I can literally shave with any of my edges honed with this stone. I'll usually complete a full v profile with this stone and then add a microbevel using ONLY this stone at the very end, with either 1 or 2 steps up on the aligner (depending on the blade). Works like a charm! My only complaint is that shipping took a while for this item, even though it was listed as in stock.
D**L
Does what I expected of it. No defects or issues, yet. Comes in a protective pouch.
J**N
Works well and fits, only use this grit to repair knife edge from heavy damage tho
J**S
Ainda não usei o produto. Ao usar avaliarei melhor. A primeira vista causa uma boa impressão.
Trustpilot
Hace 3 semanas
Hace 1 día