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The Work Sharp Precision Adjust Upgrade Kit comes with 7 new sharpening abrasives. Two Tri-Brasive rod assemblies hold 220, 320, and 400 grit diamond plates and 600, 800 diamond and fine ceramic. A third abrasive assembly includes a leather strop and ceramic rod for sharpening serrations. Coarse abrasives make fast work of sharpening very dull blades, and higher grits create beautiful, polished edges and razor-sharp knives!


  • Seven Abrasive Grits: 220, 320, 400, 600, and 800 diamond, fine ceramic, leather strop, and small ceramic rod for serrations.
  • Create Custom Edges: Choose between many grit options to reprofile an old blade or create a beautiful polished edge on your favorite blade.
  • Sharpen Serrated Knives: Use the small fine ceramic rod to sharpen serrated knives
  • Pack and Stowe: Includes a molded carry case for new and original abrasives and sharpening base.
  • Precision Adjust Sharpening Base: Not included in Upgrade Kit


  • Brand: Work Sharp
  • Style: Upgrade Kit
  • Dimensions: 11.75 x 4.65 x 6.75 Inches
  • Weight: 1 Pound
  • Color: Black
  • Material: Stainless Steel
  • Grit Type: Coarse, Fine