Work Sharp MK2 Electric Knife Sharpener – Adjustable 2-Speed Knife Sharpening System for Kitchen Knives, Pocket Knives, Scissors…
Best for
Best for versatility (knives, tools, and outdoor blades)
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$76.46
Updated Jun 27, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the Work Sharp MK2 (Ken Onion) is the standout for people who want one machine to sharpen far more than kitchen knives. knifeinformer.com highlights its diamond abrasives, spherical-bearing pivot for accuracy, and fine-tune edge adjustment as the features that matter, and its belt system handles pocket knives, scissors, axes, and garden tools alongside kitchen blades. r/sharpening is unusually warm toward it for a powered tool: commenters note it's 'quite often recommended for medium-volume sharpening,' deliver 'paper slicing' results, and excel for work and outdoor blades.
What reviewers liked
- Sharpens knives, scissors, axes, and garden tools, not just kitchen blades
- Frequently recommended on r/sharpening for medium-volume sharpening
- knifeinformer.com praises diamond abrasives and accurate pivot design
- High 4.7 Amazon average across 8,017 ratings
Where it falls short
- Community cites a learning curve before results are consistent
- Belts wear out and are awkward to change
- Reported as only 'so-so' for specialized kitchen knives
- Belt sharpeners remove significant material and handle tips poorly
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Across the reviewers we read, the Work Sharp MK2 (Ken Onion) is the standout for people who want one machine to sharpen far more than kitchen knives. knifeinformer.com highlights its diamond abrasives, spherical-bearing pivot for accuracy, and fine-tune edge adjustment as the features that matter, and its belt system handles pocket knives, scissors, axes, and garden tools alongside kitchen blades.
r/sharpening is unusually warm toward it for a powered tool: commenters note it's 'quite often recommended for medium-volume sharpening,' deliver 'paper slicing' results, and excel for work and outdoor blades. The honest caveats from the same community are a learning curve, belts that wear out and are 'a pain' to change, and weaker performance on specialized kitchen knives — plus the general belt-sharpener critique that it's aggressive on tips and removes a lot of material.
The synthesis: not the pick for a single chef's knife you want perfect, but the most versatile machine in the pool, with broad community support despite the absence of high-trust lab testing in our data.
- New & Improved
- The Mk.2 has all the capabilities of the MK, but for tools and sharpening every knife you own. It builds upon the original, with new features to make sharpening faster, easier, and more repeatable than ever before.
- Flexible Belts
- The belts conform to the edge of any blade and can be used as a grinding blade to sharpen outdoor tools, lawn mower blades, pocket and kitchen knives, even serrated knives, scissors, and many other common edge tools.
- Two-Speed Motor
- Providing more control and power you need for heavier sharpening or grinding tasks on tools like lawnmower blades, axes and garden tools. The edge guide supports the knife all the way to the tip and makes sharpening easier.
- 3-Year Warranty
- All Work Sharp sharpeners come with a comprehensive 3-year warranty. Each knife & tool sharpener is meticulously designed and quality-checked at our Oregon facility. We proudly stand behind our products.
- Designed, Engineered, & Calibrated In Oregon
- We design, engineer, and calibrate our sharpening machines all under one roof in Ashland, Oregon & ensure our products are sourced from the highest caliber manufacturers, both in the USA and globally.
I personally love it. It's a learning curve, but once you get the hang of it, it's just awesome. The trick is to make sure to watch the ...
I can't freehand sharpen for the life of me. This works good. Paper slicing good. Changing belts is easy-ish, but a pain. The belts do wear out ...
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“WorkSharp Ken Onion Mk2 Review: Sharper Than New!” · YouTube
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