• EdgeCrafter® Diamond Sharpener/File Model 420
  • Photo of a file for the EdgeCrafter® Diamond Sharpener/File Model 420
  • Photo of the EdgeCrafter® Diamond Sharpener/File Model 420 with three files, a piece of glass and hardware tools
  • EdgeCrafter® Diamond Sharpener/File Model 420

Chef’sChoice® Diamond Sharpener/File Model 420


The EdgeCrafter® Diamond Sharpener/File #420 is a unique, versatile diamond abrasive sharpener and file:

  • Revolutionary sharpener also doubles as powerful, multi-purpose file
  • MagneLok® magnetic holder allows you to quickly change diamond pads
  • Comes with 3, 100% diamond abrasive pads: extra fine, medium and coarse.
  • Ultra-flat abrasive surface
  • “Sure-Grip” handle
  • Ideal tool for handy, do-it-yourselfers!

Product Features Shown In Red:
See “Edge Type” for sharpener capabilities and “Knife Guide” for recommended knives.

Edge Guide
15 Degree Edge
20 Degree Edge
15 and 20 Degrees
Steeled Edge
Knife Guide
Chef's Knives
Santoku Knives
Bread Knives
Hunting Knives
Fillet Knives
Pocket Knives
Ceramic Knives


Design Overview:
Finish: Black
Abrasive: 100% diamond abrasives
Handle Style: “Sure Grip” handle is comfortable to hold, easy to hang.
Scissors: Yes
Product Weight & Dimensions:
Weight: 0.48 lb
Length: 11 inches
Width: 1-1/4 inches
Height: 7/8 inch
Warranty: 1 year
Includes: Instruction manual
Origin: U.S.

The EdgeCrafter® Diamond Sharpener/File #420 features three interchangeable 100% diamond abrasive pads, ranging from coarse to ultra-fine, held flat on the  MagneLok® magnetic holder.

Diamonds, the hardest known material, file any material and sharpen any alloy. They are the most versatile and efficient abrasive. Conventional steel files are limited to filing softer alloys and materials. The EdgeCrafter® Diamond Sharpener/File shapes any material, regardless or hardness, remains “ultra-flat” and offers a versatile, replenishable diamond abrasive surface: interchangeable diamond abrasive pads in three different grits. Additionally, the diamond abrasive surface will resist “loading up”. Unlike conventional steel files which, typically, can only file in one direction, the Model 420 is multi-directional, extremely important when working with complex surface profiles.

Unique Technology: EdgeCraft uses a proprietary process that permanently bonds 100%  diamond abrasives to a segmented steel pad. The EdgeCrafter® pad is easily dropped into place on the powerful DualTrak™ MagneLok® magnetic base. The pad’s segmentations help assure a strong magnetic bond and a perfectly flat surface. The grooves between the segments permit the magnet to trap metal filings, keeping them off the abrasive surface.

Filing residue is easy to dispose of since the pad can quickly lifted off the base and shaken or brushed clean.

Versatility:  The EdgeCraft Diamond File Set is ideal for a wide range of uses. It makes a powerful, multipurpose file. Interchangeable 100-percent diamond abrasive pads in ultra-fine, medium and coarse grits assure the right abrasive for every job. Fitted with the ultra-fine pad, the EdgeCrafter® Diamond File Set® removes chips in delicate crystal and porcelain or can be used for jewelry making. The medium and coarse grit pads handle the tougher jobs. The EdgeCraft Diamond Sharpener/File shapes, polishes and finishes all metal alloys, tungsten carbide, ceramic, glass, plastic, aluminum, brass, concrete, plaster, stone and wood and much, much more!

Compact, portable and lightweight, it’s convenient to carry in a pocket or knapsack and stores easily in a drawer, toolbox, tackle box or glove compartment. It’s handy for fishing, hunting, hiking, camping and at the vacation cottage.

Use As A Sharpening Stone: The EdgeCraft Diamond Sharpener/File is also the ultimate sharpening stone. Conventional sharpening stones are limited to sharpening softer alloy blades. They can develop an uneven

surface as they wear and typically provide only single size grits. The EdgeCraft Diamond Sharpener/File sharpens any alloy, regardless of hardness, remains “ultra-flat” and offers a versatile, replenishable diamond abrasive surface: interchangeable diamond abrasive pads in three different grits. It is perfect for people who like sharpening their knives with a stone.

The EdgeCraft Diamond Sharpener/File puts a razor-sharp edge on kitchen knives, hunting, pocket and fish fillet knives. No lubricants or sharpening oils are necessary. The diamond abrasive grooves provided can be used for sharpening fishhooks and other pointed tools and accessories. It sharpens arrowheads and other hunting and fishing gear.

The EdgeCraft® Diamond File Set® 420 can be used to sharpen carving and woodworking tools like chisels and plane blades. It sharpens hatchets, axes, shovels, hoes, lawn mower blades and other gardening tools. It puts a terrific edge on paint scrapers and many, many other tools found in the workshop, garage, tool shed, machine shop, basement and kitchen.


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