• Rox 6520 Taidea Double Sided Grinding Stone 2000/5000 Sand Double sided corundum grinding stone. Water sharpening It is used to sharpen chef knives, kitchen knives, outdoor knives, wood carving knives, scythes, grater crochet, scissors and all kinds of cutting tools. Blue colored side 2000 Sand (micron 7.1 um) White colored side 5000 Sand (micron 3.2 um) Size 180x60x28 mm Weight 580 g You can safely grind on the special silica gel pvc non-slip base. Instructions for use Soak the stone in water for 5 minutes and then place it on a fixed platform. Coarse grinding, Hold the blade at an angle of 10 - 30 °, push the edge on the surface of the stone back and forth with gentle pressure and continue sharpening until the edge is sharp enough. After sharpening the tool, it must be honed. Fine grinding is a necessary step to eliminate the burrs of the edge. With gentler pressure to use, repeat the operations in coarse grinding again. Apply fine grinding once a week to keep your blade sharp. After your sharpening process is finished, wipe your stone with a wet cloth or rinse with water and then dry it. Clean the stone surface with a soft brush. Warnings Suitable for use with water only, no oil required. Use the entire surface of the stone during sharpening. This will ensure proper wear of the stone over time. Caution: Please sharpen to avoid any injury