【Upgraded Version】The corundum lawn mower sharpener has a stainless steel base, which solves the wear of the base caused by the excessive speed of the sharpener, effectively prolongs the service life and improves the effect of use.【Improved Quality】Made of corundum with metal baffle, with better quality and longer life.The grinding wheel will not melt due to the high temperature during the grinding process.The lawnmower blade sharpener improves the sharpness of the stone and makes the lawnmower blade sharpener stronger.We have redesigned the shape of the stone so that the sharpener does not collapse or break during use.【Wide Application】A good helper for lawnmower and mower blades.Suitable for any garden, yard, farm electric drill, widely used for sharpening grass blades, drill blades, lawnmowers, scythes, tillers, etc.【Easy to Use】Installation only takes 10 seconds.You just need to install it on the electric drill and use it.And it can make old dull blades sharper.Effectively increase your productivity.【High Quality: Size】1.969 x 2.559 inch / 1.97 x 2.56 inch per piece.Packing: 3 sets of lawnmower knife sharpener + 1 set of balancer.The lawnmower blade sharpener is made of corundum and stainless steel base, which is durable and has a long service life.And it will not break during use.