1、SPECIFICATIONS: Whetstone combination kit including 80 grit, 200 grit, 400 grit, 500 grit, 600 grit, 800 grit, 1000 grit, 1500 grit, 2000 grit and 3000 grit specifications. 2、MAIN PURPOSES: Coarse grinding can be used to repair severely dulled blades, fine grinding can be used for edging, blade strengthening and daily sharpening. 3、EASY OPERATION: These sharpening stones are strip design, which are lightweight and portable, easy and labor saving in operation, and convenient to replace. 4、GOOD PERFORMANCE: These whetstones are finely machined from excellent materials, with high hardness, wear resistance and long service life. 5、WIDE APPLICATION: Professional blade sharpening tool set, commonly used in industrial machine tools, woodworking and household daily use, etc.