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Chef's Choice EdgeCrafter M420 Diamond File Sharpening Steel

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Chef's Choice EdgeCrafter M420 Diamond File Sharpening Steel

The Chef's Choice EdgeCrafter M420 Diamond File Sharpening Steel is a highly useful tool with incredibly versatile functionality. It has 100% diamond abrasives that can sharpen any material. It can be applied to ceramic tile, hardened steel, glass, and concrete. It has a MageLok magnetic holder that allows you to change diamond pads quickly, but also holds them in place with flawless stability. The EdgeCrafter M420 Diamond File Sharpening Steel from Chef's Choice can put a sharp edge on any alloy knife, including tungsten carbide tools. It has a black handle that provides comfort to the user, and makes operating it effortless.


  • Revolutionary sharpener also doubles as powerful multi-purpose file
  • MageLok magnetic holder – can change diamond pads quickly
  • Three 100% diamond abrasive pads – extra fine, medium, and coarse
  • Ultra-flat abrasive surface
  • ''Sure-grip'' handle
  • Ideal ''handyman'' tool
  • Made in the USA

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Chef's Choice EdgeCrafter M420 Diamond File Sharpening Steel

Weights & Dimensions

  • Product Weight: 4 lbs


Product Type: Sharpening steelAdditional Materials: Diamond abrasives, metal, plastic
Number of Items Included: 4Pieces Included: 1 file, 3 pads
Sharpening Required: Yes
  • Sharpener Included: Yes
Dishwasher Safe: No
Commercial Use: YesEco-Friendly: No
Country of Manufacture: United States 

About the Manufacturer

Daniel D. Friel, Sr. founded the EdgeCraft Corporation in 1984. How he built an enterprise, that in only a few short years has become the world leader in cutting edge technology, is a true American success story. As he neared the end of his 40-year career with the DuPont Company, Friel inventoried his skills. Born in 1920, he had worked as a scientist, development engineer and manager of many diverse businesses. He had done research in a variety of areas including physics, chemistry, optics, electronics and even gravity. He garnered numerous patents for development of sophisticated instruments.

Always enthralled by knife sharpening, Friel included in his list the invention of a truly effective electric knife sharpener that would work on a wide variety of knives, particularly, fine quality gourmet knives. He rescued a 20-year-old set of Gerber knives from a closet. They were a present from his wife June, and to his great frustration, he had never been able to put a satisfactory edge on them.

With fierce determination and a personal deadline of three years to show himself adequate progress on the project, Friel set to work in a basement laboratory and then sought the assistance of other professionals. "They were the nucleus of the EdgeCraft team," recalls Friel. He created thirteen prototypes before he came up with one that satisfied him. Soon after its introduction, the Chef's Choice Diamond Hone Sharpener earned the acclaim of food experts and chefs worldwide, including Pierre Franey, Jacques P├ępin and the late Craig Claiborne.

Friel compares the day he left DuPont to follow his second career to the day he walked away from Johns Hopkins University after earning a bachelor's degree in chemical engineering."Unlike the day I left Johns Hopkins, when I left DuPont I could proceed with the knowledge and confidence gained from some 40 years of hands-on experience," Friel recalls. "I saw a need and I had the confidence that I could deliver."

Chef's Choice EdgeCrafter M420 Diamond File Sharpening Steel

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Customer Reviews



from Wythe County, VA

This is THE BEST sharpener one can buy for the $$ !!! Chef's Choice does make replacement pads for the magnetic holder. They are available in course, medium, and ultra fine grits in packs of three single or assorted grits. I've only been able to locate one seller of the pads and they were a bit too pricey :-( Downsides are: Replacement pads are hard to find/obtain and due to the magnetic holder, it will magnetize steel blades during sharpening. One must be a dealer/wholesaler in order to buy pads direct from Chef's Choice, unless they have changed their policy since my past purchase several years ago when I was a wholesaler. It would be nice if Wayfair would obtain pads and sell them for a reasonable cost...hint, hint

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Great product with good shipping service.

from USA – Verified Buyer– Top 5 Reviewer

The product is very good , it matches the description, easy to handle and manage.

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EdgeCrafter Sharpener Is Real Deal

from south carolina – Verified Buyer

I used this product to try and sharpen several VERY dull kitchen knives. I found the coarse grade attachment made quick work out of them. 3 or 4 strokes on both sides and it was ready to switch to the medium grade. Same thing with the medium. 3 or 4 good strokes on each side was all it took. I liked the fine file attachment, but I was left wanting something even finer. The finished edge was good. It was sharp enough to easily cut overripe tomatos and anything else I tried to cut. My only complaint is although it did pretty well in my tests, I still woulld have liked to see a "super fine" file included as part of the set.

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EdgeCrafter M420 Diamond File Sharpening Steel is also sometimes listed under the following manufacturer numbers: 4200100