The WORK SHARP 6000 ULTRA-FINE GRIT BULK PACK - ½" X 12" Original Knife & Tool Sharpener Contains six 6000 abrasive belts for the Original and Ken Onion Edition Knife & Tool Sharpeners (belts measure ½" x 12"). Intended for honing applications. Similar to honing with a leather strop. Extremely fine edge for razor quality shave. Highly conformable to hone gut hooks and serrated edges. Very cool cutting for the most delicate blades such as razors and scalpels.