Bench grinders, sharpeners -Double Sided Knife Sharpener Whetstone 240 1000 Grit_B Highlights brand generic Double Sided Knife Sharpener Whetstone 240 1000 Grit_B Description: Double sided sharpening-made from quality corundum Wide APPLICATION- used for shaping and polishing kitchen, hunting or pocket knives, carving and gardening tools. Water Stone - This stone is intended for use with water, not oil. Simply soak the stone for 5-10 minutes before use and lubricate with additional water as needed when sharpening. No expensive honing/honing oil needed! Size: approx.18x6x3CM/7.08x2.36x1.18inch, easy to use Specification: Material: corundum Size: 18.2x6x3cm/7.17x2.36x1.18inch Color: Multicolor Specification (optional, as you choose): 1000 grit/ 3000, 1000/6000 grit, 240/1000 grit, 600/1500 grit Package includes: 1 piece double sharpener Note: Color may be slightly different due to the color calibration of each individual monitor. Please allow slight measurement deviation due to manual measurement. 1. Soak the whetstone in water for 15 minutes and add salt water. 2. Grinding the knife according to the order of sharp grinding after rough grinding 3. The sharpening angle is preferably 15-30 degrees 4. When grinding the knife, it is not necessary to scrape the mud and the effect of sharpening is better. 5. Repeated rubbing 6. Please wipe clean after use, put it in the shade and dry it.