These Oil stones And Sharpening Tools (Leadrank) are used for sharpening kitchen knives. Standard grade corundum has been used to attain desired sharpening result. Double sided sharpening design of these tools ensures about their better performance. These are equipped with silica gel based non slippery base for maintaining safety of workers. Standard of these Oil stones And Sharpening Tools (Leadrank) has been tested on the basis of their diameter, strength, longevity, performance and design precision. We offer these items at reasonable price.