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🔪 Stay sharp, stay ahead — the ultimate edge companion for the modern pro.
The Kershaw 9" Ultra-Tek Sharpener is a portable, handheld knife sharpener featuring a 600-grit diamond-coated oval shaft stored inside a durable 6061-T6 anodized aluminum handle. Weighing just 1.7 ounces and extending to 9 inches when in use, it offers precise, oil-free sharpening for all types of knives, making it an essential tool for everyday carry, culinary, and outdoor enthusiasts.


| ASIN | B000WALUV6 |
| ASIN | B000WALUV6 |
| Brand Name | Kershaw |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,801) |
| Department | unisex-adult |
| Global Trade Identification Number | 00087171253503 |
| Grit Type | 600 |
| Included Components | Kershaw 9" Ultra-Tek Sharpener, 600-Grit Diamond-Coated Oval Shaft, Portable Blade Sharpener Tool for Knife |
| Is Discontinued By Manufacturer | No |
| Item Dimensions L x W x H | 6"L x 1"W x 1"H |
| Item Type Name | Kershaw 9" Ultra-Tek Sharpener, 600-Grit Diamond-Coated Oval Shaft, Portable Blade Sharpener Tool for Knife |
| Item Weight | 0.15 Pounds |
| Item model number | 2535 |
| Manufacturer | Dreme Corp |
| Manufacturer | Dreme Corp |
| Manufacturer Warranty Description | Warranty |
| Material Type | Plastic |
| Product Dimensions | 6 x 1 x 1 inches; 2.4 ounces |
| UPC | 087171253503 |
| UPC | 087171253503 |
| Unit Count | 1.0 Count |
M**S
One of the best pocket sharpeners you can buy
Honestly this is kind of the best you can get for a pocket sharpener. 600 grit isn't idea for ultra fast rough work. If you had a blunt edge and need something to get you to working edge fast, i would want a very coarse 320 grit or even 220 grit. However if you want to keep your edge serviceable this is kind of perfect. 600 grit is fine enough to give you a keen edge, rough enough to do a little profiling if you are desperate. Simple system, nothing really to go wrong, quite durable and easy to pocket or toss in a field bag, so reasonably priced its not heartbreaking if you lose it. You do need to learn to sharpen though, this is totally unguided, but with a little practice and fairly steady hands you should have no issues getting at least a working edge. This sharpener alone is very capable of shaving sharp edges on well heat treated steel. If you are consistent you can easy do light passes alternating sides and break that burr off, negating the need for a strop, but a strop would be a good addition. Ultimately, this is the best one step pocket sharpener I have come across. it can handle most of your sharpening needs. I could be satisfied with this being my only sharpener if it came down to it. I definitely recommend.
M**N
Very cool tool
This as a well engineered sharpener. Screws into the protective cover when not in use, so it stays put. It’s just the right size for sharpening my EDC knives and it works like a champ. The oval shaped sharpener makes it easier to maintain a good angle, and in just a few passes my knives are as sharp as the day I got em, if not sharper. I love the portability. Easily fits a tackle box, glove compartment or pocket. I use it often and I don’t see any signs of wear on it.
D**R
Best sharpener on the market
Best sharpener I've owned. It keeps my Kershaw knives and home steak knives extremely sharp.
R**S
Great way to keep a good edge
I’ve been using the Kershaw Ultra-Tek Blade Sharpener for a few months now, and I’m really impressed with its performance. The unique design, with the diamond-coated shaft stored inside the handle, is perfect for my deer hunting trips. It’s compact enough to fit in my pocket or day pack, making it super convenient to carry around. The sharpener does an excellent job of keeping my Kershaw knife razor sharp. I found it especially useful for putting the finishing touches on an already good edge. Just remember, it won't replace a good whetstone if your knife gets too dull. Overall, it exceeded my expectations, and I’d definitely recommend it to other knife enthusiasts.
H**O
Great tool
I've had one these for about 12 years, and it's excellent. They get better with use, and my new one is already seeing a good bit of steel. Now I have two!
P**S
I like this sharpener.
I really like this sharpener. It works well on my curvy Ken Onion blades, as well as straight blades. I also use it on my kitchen knives to great affect. It's easy to use, the knurled grip doesn't slip. Typically, I can get a nice edge pretty fast. I wouldn't use it on a super dull blade, but for maintenance, this thing is great. I really like the self storing feature and compactness for if I do need to put it in a pack sometime. It feels very solid in both the stowed and open positions. Recommend.
B**Y
Works great
Great sharpener
S**N
Makes sharpening easy
I have several sharpening methods, and own two other diamond stone gadgets. This is a very clever system, and frankly had it not been for a respected guide and the Kershaw brand, I'd have been too skeptical to buy this. But I wanted something for remote field work, and my diamonds stones are just too big, so I decided to try it. Wow. It does a brillaint job of sharpening. I've tried on on over a dozen different knives now and they all took an edge with little fuss. Perhaps it's the oval shape of the stone, or mayb it's becuase I'm usded to using a steel, but for whatever reason, I seem to get a respectable edge with out a great deal of discipline in the stone-to-blade angle. Obviously you can'it just ignore the angle, but it's easy to be in the "ok zone". With just a little care, I can get to "scary sharp" and without unpacking the stones, sharpening fluids... So, this is easy, cheap, and excellent. Almost too good to be true, but it is true... for me at least
J**E
Excelente para bushcraf, recomendo.
G**J
El afilador Ultra-Tek de Kershaw es una buena herramienta para utilizarse cuando los filos de tus cuchillas necesitan ser atendidas y no tienes otro medio para afilarlas. Es portátil y fácil de usar. Los materiales de manufactura son excelentes. Este afilador es una buena opción para excursionistas.
B**B
The Kershaw Diamond Sharpener is excellent, and the supplier met the challenge.
C**E
This is a great product for having a compact, light weigh sharpening hone for my daypack. It works very well for field sharpening on the fly, but does not replace a good sharpening system once you get home. It certainly does what I bought it for.
K**R
Quick delivery. Accurate description.
Trustpilot
2 months ago
4 days ago