Features of fixed angle sharpener: 1. The overall aluminum alloy CNC machining, the linear guide is silky smooth, flexible and quiet 2. The maximum clamping 53mm all kinds of knives, grinding angle can be adjusted arbitrarily to adapt to different styles of chisels. 3. The four corners are equipped with non-slip foot pads, which will not slip during grinding operations. 4. No need for technology to achieve fast and safe sharpening Sharpening stone use process: 1. Soak the whetstone in water for 5 minutes to fully absorb water. 2. Scientifically sharpen the knife in the order of first rough grinding and then fine grinding, place the whetstone steadily, and then grind it back and forth according to the angle of the blade, and rub it repeatedly. 3. When sharpening the knife, it is not necessary to scrape off the mud, and the sharpening effect is better when there is slurry water. 4. Rinse well after use and place in a cool place to air dry. Product description: The mesh number refers to the particle size of the whetstone, that is, the thickness of the particles. The smaller the mesh number, the thicker the surface, and the larger the mesh number, the finer the surface. Product packaging: Kraft paper box Product weight (including packaging): Whetstone monomer 0.685KG Fixed angle sharpener unit 1.42KG Sharpening stone + knife sharpener combination 2.1KG