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Work Sharp Ken Onion Edition Knife and Tool Sharpener

Sharpen a huge variety of knives and scissors-designed with the help of renowned knife maker Ken Onion!
Item #
96% of 100

Work Sharp has partnered with legendary knife maker Ken Onion to develop the Work Sharp WSKTS-KO Knife and Tool Sharpener, an easy, almost effortless way to sharpen all your knives and many tools with precision and repeatability. Using a fully adjustable precision sharpening guide and five included flexible abrasive belts of various grits, it sharpens pocket and hunting knives, serrated knives, kitchen knives and any other shape or type of blade you own. The Ken Onion Edition Knife and Tool Sharpener features a larger more rugged design than previous models. It is the first in its lineup to feature variable speed from 1200-2800 SFM, a sharpening guide that is adjustable in 1° increments from 15° to 30°, and wider 3/4'' belts* for more versatility and longevity.


  • Compact, portable design is ideal for sharpening at or away from your workbench
  • Heavy Duty Motor with improved cooling and a range of speeds from slow speed honing to high speed grinding
  • Precision sharpening guide ensures a consistent angle every time
  • Guide is adjustable from 15° to 30° so you can sharpen any knife to the angle you desire
  • Scissor Sharpening Guide quickly restores scissors to like new condition
  • 3/4'' x 12'' premium, flexible engineered abrasive belts* sharpen virtually any shape or type of knife blade
  • Quick-lock belt tensioner for fast belt changes
  • * 6000 grit belt is narrower (1/2'') for better contact with serrations, guthooks and other hard-to-reach edges

(1) Work Sharp WSKTS-KO Knife and Tool Sharpener, Ken Onion Edition
(1) P120 Extra Coarse Belt
(1) X65 Coarse Belt
(1) X22 Medium Belt
(1) X4 Fine Belt
(1) 6000 Extra Fine Belt
(1) Adjustable Knife Sharpening Guide(15°-30°)
(1) User's Guide
Rockler Protection Plan

With the Rockler Protection Plan, you'll get accidental damage coverage immediately upon purchase of your tool. Plus, we will extend the manufacturer's warranty for your choice of an additional 1 or 2 years. We'll take care of all parts and labor for any repairs, with no deductibles and no hassles. If your tool can not be repaired, we'll gladly replace it. Available in the US only. Click here to learn more.

More Information
Brand Work Sharp
Manufacturer Part Number WSKTS-KO
Weight 3.5500
Tech Spec
  • Variable Speed Range: 1200 SFM to 2800 SFM
  • Guide Adjustment Range: 15° to 30°
  • Belt Size (except 6000-grit belt): 3/4'' x 12''
  • 6000-Grit Belt Size: 1/2'' x 12''
Discountable No
4.8 / 5.0
28 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
love it takes a little to get use to but love it
November 14, 2019
3 months ago
Easy to Use, Super Results
The Work Sharp is a terrific tool. Easy to use, great instructions. Amazing results. This is a terrific investment for your home and workshop.
October 22, 2019
4 months ago
Woodworking Experience:
Handiest sharpener I've owned.
Based on very limited use, I'm very pleased. More importantly, I sharpened my wife's kitchen knives and she was a also pleased.
October 11, 2019
5 months ago
Woodworking Experience:
Machine works Excellent!
July 26, 2019
7 months ago
Love it. This is the best knife sharpener that I have ever used!
May 11, 2019
10 months ago
Woodworking Experience:
This is a MUST have tool
Love it. I have sharpened all my knives and impressed the wife when I sharpened a special pair of sewing scissors for her
December 18, 2018
1 year ago
Woodworking Experience:
No complaints!
Excellent piece of gear!
July 30, 2018
1 year ago
Woodworking Experience:
Very happy with purchase, recommend.
As a professional chef, sharp knives are essential to my trade. Unfortunately, even quality kitchen knives don't always come with the bevel I prefer. I have always used multiple wet stones in the past, but when I saw the adjustable bevel guide on the Ken Onion addition I wanted to give it a try. My first using the sharpener I was able to change the bevel on an older kitchen knife and quickly change the belts to a Razer finish. What would have taken me hours on my wet stones took less than 15 minutes from start to finish with outstanding results. I'm am very happy with this purchase and would recommend to anyone with similar needs not wanting to break the bank.
March 16, 2018
1 year ago
Woodworking Experience:
I needed a good knife Sharpener and found one
Excellent tool it works good on knives and lots of other shop and garden tools. It is a real tool not just a toy
June 15, 2017
over 2 years ago
works like a charm
I have NEVER been able to sharpen a knife correctly. They usually end up worse than when I started. It took me a little wile to get the technique down but now I have sharpened several knives successfully. I started with my Puma hunting knife, I have had it since 1970, and thought it was a lost cause because of my own lack of ability to sharpen correctly. It now has an edge on it that is almost scary. If you buy this read the directions and follow them you cant miss.
June 9, 2017
over 2 years ago
Woodworking Experience:
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 6 questions Browse 6 questions and 13 answers
Why did you choose this?
Rockler Store
Used the one my son has and it did a great job. Needed one for myself.
Phill S on Oct 1, 2019
Make my wife happy.
Heather H on Feb 27, 2019
Used the one my son has and it did a great job. Needed one for myself.
Phill S on Oct 1, 2019
It sounded good and I have all kinds of dull stuff.
Richard S on Aug 31, 2019
Make my wife happy.
Heather H on Feb 27, 2019
Xmas husband
Carla H on Dec 15, 2018
I am hoping that it lives up to what i've read.
Monte M on Dec 29, 2017
I read great reviews about this on several blade forums. I need something to clean up old blades and new ones, too. This tool comes highly recommended.
Geoffrey C on May 3, 2017
Excellent reviews and search of the web for similar products.
Joseph S on Jan 5, 2017
I needed a sharpening tool and this one has a good review.
Michael G on Dec 5, 2016
I love it this, makes all my knives sooooooo sharp.<br />a true must have
Elizabeth M on Dec 2, 2016
Appears to be a good choice for sharpening tools and knives.
Thomas H on Nov 23, 2016
excellent ratings by others
Eugene S on Jun 8, 2016
I have always had trouble sharpening knives and I believe that this will make it much easier for me.
Colin G on Jan 18, 2016
Needed a good sharpening tool
Scott W on Dec 31, 2015
A dull knife is a dangerous knife. I like sharp knives.
Richard D on Dec 22, 2015
I was tired of always having dull knives in the kitchen. I have tried many other sharpeners and never got a good result. The Work Sharp actually works! It is a well engineered and sturdy piece of equipment. Highly recommended!
William C on Dec 13, 2015
Familiar with Ken Onion products and assume this sharpening device will be of equal quality.
FRED D on Dec 7, 2015
to better sharpen knives
Jim N on Nov 28, 2015
husband wanted item for Christmas. He is a ROCKLER fan!
Cherelee M on Nov 27, 2015
This is one of the best and easiest tools for keeping knives razor sharp. It works on many other tools that need to be kept sharp. The rotating head allows it to be used as a grinder. The belts on this unit are slightly wider than on their other unit. This unit allows you to adjust the angle you want to grind your knives at. The original sharpener does not allow that.
2Dog Projects on Nov 11, 2015
It is a gift. The recipient specifically asked for it.
Mary Jane H on Oct 31, 2015
TONY K on Oct 20, 2015
I need a consistent method of sharpening knives. All stones require a fixed position which is hard to keep without guides. The sharpness of knives are always questionable when I have done this.
Ronald K on Oct 16, 2015
Came advertised in an email and i wanted to look at it. My spouse is a great cook and her knives always need sharpening. The video depicted how easy this was to use and give a sharp edge. Well worth the price to give it a try. Will save me from having to buy new knives.
Russell M on Oct 7, 2015
Needed to use some gift cards, and everything else I wanted to order (such as a Beall Wood Threader) was not available from Rockler, but the Beall Wood Threader is available from Amazon, Ebay or Woodcraft!
James F on Oct 2, 2015
Liked the video, sold me
Karl K on Sep 22, 2015
It sounded good and I have all kinds of dull stuff.
Richard S on Aug 31, 2019
Xmas husband
Carla H on Dec 15, 2018
Can you buy the belts individually or do you have to buy the kit each time. Presuming you use more of one grit?
Dave B on Dec 16, 2015
BEST ANSWER: When i registered the product with Work Sharp Tools, i reviewed their website information on replacement belts. They have quite a few options for ordering the replacement belts and even some more belts than originally provided with the product. So, you do not need to buy another unit just to get the belts. I hope this helps.
can it sharpen lawn mower blades ?
Chuck D on Oct 8, 2015
BEST ANSWER: Yes, and the head rotates 90 degrees also so instead of a point you can have the flat part of the belt facing up. THe rougher the blade, the faster it will eat up the belt though. Best to start on a grinder if you have one to take out any major nicks or a rolled edge. Otherwise it will eat the belt pretty fast. Or just buy some spare belts. It is better used to put a fine edge on the lawn mower blade in my opinion. I used it on mine and it put a nice edge on it. It is fantastic by the way for knifes and scissors. There are tips on the included dvd for sharpening yard tools and blades. Don't forget to check the balance of the blade if you use a grinder to take out major nicks. Hang it on a nail and if it doesn't stay level remove more from the heavy side...
can you sharpen a chisel with this?
Dan R on Sep 20, 2018
BEST ANSWER: The WSKTS-KO uses flexible, abrasive belt technology that creates a "convex" edge, which is great for knives but not recommended for chisels or hand plane irons. The WS3000 is our premier woodworking tool sharpener and was specifically designed for sharpening wood tools such as chisels. It uses a completely flat, tempered-float glass wheel, with PSA abrasives, for the flattest possible grind. It has a sharpening port that will accommodate chisels and hand plane irons up to 2" wide. The port may be adjusted to 20, 25, 30 and 35 degree angles for repeatable sharpening results every time. The WS3000 is available through Rockler Woodworking and Hardware.
What is the input voltage? Do I would know can I use it on 220 ~240 voltage country's
Iyad K on Jun 26, 2016
BEST ANSWER: 110-120v ac out of box , for European power grid you will need a power inverter.
Does this sharpen Ceramic Knifes?
NATHAN C on Dec 16, 2015
BEST ANSWER: I have not tried it myself, but checking the Work Sharp website, I see a Ceramic Knife Sharpening and Repair Kit Item Number: WSSA0002970 diamond abrasive belt kit. So I am going to say yes. It has worked wonderfully for all intended purposes otherwise, and if they offer this kit, I assume it will work as well for ceramic knives too.
Can this be used on gouges as well?
Huddy on May 26, 2017
BEST ANSWER: No, a belt driven system will provide a convex edge. You will want a wood working sharpener, such as the Work Sharp 3000. They have this model right here on Rockler.