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Work Sharp

Work Sharp Ken Onion Knife Sharpener

  • 15 to 30 degree adjustable angle guide
  • Variable belt speed for finishing or reprofiling
  • Knives, scissors, serrated blades and garden tools
  • Quick-change abrasive belts, fine grit listed
  • 3 year warranty
  • 2 pounds, 7.76 x 10.57 x 2.93 inches

Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A versatile powered sharpener for anyone with a mix of kitchen knives, pocket knives and tools, with repeatable angles and speed control. The belts are a consumable, and the box contents are not spelled out.

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ASIN: B0CXG57C4FCategory: Knife Sharpeners

Styles Available

Ken Onion MK.2Ken Onion Elite MK.2

Need a different one? Pick on Amazon →

Overview

Work Sharp built the Ken Onion Mk2 as a motorized belt sharpener with an adjustable angle guide and electronic speed control. A flexible abrasive belt runs past the guide, so each blade is drawn through at a set bevel to sharpen and hone in one pass.

One machine covers fine kitchen edges, thick hunting blades, serrations, shears and garden tools, and the angle dial makes each bevel repeatable. A powered belt removes steel quickly, so a careless pass can take more metal than a whetstone would.

Who it's for

Edge enthusiasts, hunters and gardeners who sharpen many different blades will get the most from the adjustable guide. Someone with one chef knife and no interest in belts or angles will find it more machine than the job needs.

Pros and cons

Pros
  • Adjustable angle guide for repeatable bevels
  • Variable speed for finishing or reprofiling
  • Handles serrated blades and scissors
  • Quick-change belts swap in seconds
Cons
  • Included belt count not listed
  • Belts wear out and need replacing
  • Fast belt can remove too much steel
  • Bulkier than a pull-through sharpener

Performance notes

Edge quality comes from three settings working together: the guide angle, the belt grit and the belt speed. Lower speed with a finer belt polishes, while higher speed with a coarser belt reprofiles damaged steel. Because the belt is flexible, it follows curves and serrations instead of grinding them flat, and steady, light passes hold the bevel even.

Specifications

BrandWork Sharp
Dimensions & fit
Item weight2 pounds
Item Dimensions L x W x H7.8 × 10.6 × 2.9 inches
Capacity & performance
Angle range15 degrees
Speed controlVariable, electronic
Power & efficiency
Power sourceCorded electric
Construction & materials
ColorBlack
Material TypeStainless Steel
Compatibility & installation
Compatible bladesKitchen knives, pocket knives, hunting blades, serrated blades, scissors, shears, garden tools
Warranty & support
Manufacturer Warranty Description3 years
Other details
Grit TypeFine
Abrasive typeFlexible quick-change abrasive belts
Item Type NameElectric Knife And Tool Sharpener

Frequently asked questions

How do I switch from repairing a damaged edge to polishing on the Ken Onion Mk2?

Swap to a finer belt with the quick-change system and turn the speed down. The listing suggests slower speed for delicate finishing and faster speed to reprofile a damaged edge.

What angle should I use on the Ken Onion Mk2 for kitchen knives?

The listing says to set the guide to each tool's intended edge, finer for kitchen knives and thicker for hunting blades, but gives no specific setting per knife type.

Is the Work Sharp Ken Onion Mk2 a whetstone or pull-through sharpener?

No. It is a motorized belt sharpener with electronic speed control and an adjustable guide, not a stone or a fixed-slot tool.