Work Sharp Precision Adjust Knife Sharpener Upgrade Kit and Case which uses stainless steel liners

which uses stainless steel liners in the handle

backbreaking work that is very dangerous

Twist up/down eyecups enable viewing with glasses

Blade-HRC: 58-60

Work Sharp Precision Adjust Knife Sharpener Upgrade Kit and Case which uses stainless steel linersUPGRADE KIT ONLY Upgrade accessory for the Precision Adjust Knife Sharpener (not included). Take your Precision Adjust Sharpener to the next level and get even higher performance! For edge enthusiasts who want the most features to create the sharpest edge possible The upgrade kit includes a coarse Tri Brasive assembly with 220, 320 and 400 grit diamond plates to quickly restore a sharp edge, a fine Tri Brasive assembly with 600 and 800 grit diamond