This sharpening stone is suitable for most sharpening operations, such as tool steel, scissors, axes, kitchen knives, outdoor knives, cutting knives, grinding knives, knives folding etc. This whetstone can also be used for grinding scissors, chisel, axe, razor and other tools. Wetstone has double sides, one surface is 3000 coarse and another surface is 8000 is fine grain. High quality corundum materials with uniform grain size, strong grinding force, corrosion and heat resistant, durable and long lasting. Silicone nonslip pad, it has good slip resistance. Hollowout construction can circulate water freely. 60 Day Money Back Guarantee and Lifetime WorryFree Warranty 2 in 1 Water Stone sharpening for sharpening and polishing knives with silicone nonslip backing, 3000/8000 Features: Materials: corundum Dimension: 180 x 60 x 30 mm Net weight: 622.4g Weight with base: 684 g Instruction 1. Plunge whetstone in water for about 5 minutes. 2. The sharpening of knives with stage 1 or stages 2, is determined by the degree of blunting of the tool. Step 1: 3000 grit coarse is used to repair a very dull edge and for dull knives. Hold the knife at a 10 to 30 degree angle and hone the edge on the surface of the stone with gentle pressure until the edge becomes sharp. Step 2: 8000 grit refining is a necessary step to remove burrs on the edge. Hold the knife at an angle of 1030 degrees and sharpen it on the surface of the stone with more gentle pressure, grind it until there is a smooth, fine edge. In general, use the 8000 grit once a week to keep your knives sharp. 3. After sharpening the knife, clean the knife with a damp cloth or water, then dry it with a clean towel. Clean the surface of the stone with a soft brush and put the stone in a ventilated place to dry completely before storing. This doublesided sharpening stone is sturdy with a nonslip base for safety. The package includes: 1 x Whetstone 3000/8000; 1 x nonslip base.