Feature:1. STABLE AND RELIABLE: Double layered corundum, won't melting when sharpening due to high temperatures, ensures stable and reliable sharpening performance and prolongs the life of the blade.2. EASY INSTALLATION: Corundum mower blade grinder stone takes only 10 seconds to install, just attach it to your drill and use it. It quickly sharpens dull old blades.3. PRECISE MOWING: The mower blade sharpener is designed to sharpen blades quickly and easily, keeping your mower blades sharpness for precise mowing.4. EFFICIENT TOOL: The blade sharpener is an efficient tool for sharpening blades, drill blades and mowers, fast, automatic, easy, safe, time saving and labor saving.5. DURABILITY: Corundum mower blade grinder stone is made of corundum with stainless steel plugs for excellent durability and effectiveness.Specification:Item Type: Corundum Mower Blade SharpenerMaterial: CorundumUses: Widely Used in Hand Drill, Grinding Lawn Blade, Drill Blade, Mower, Sickle Mower Lawn Tractor, Rotate Tiller, Etc..Package List:10 x Corundum Mower Blade Sharpener Have a great time shopping!