The Kramp 532180424 is a high-quality 530mm (20.87 inch) 3-in-1 cross-cut left-hand rotation blade designed for various lawn mower models. This versatile blade supports mulching, bagging, and side discharge functions. It features a central hole diameter of 15.8mm, two outer holes with a diameter of 9.5mm, and an outer hole distance of 48mm. With a thickness of 4mm and a weight of 0.88kg, this durable blade ensures efficient cutting performance and is a direct replacement for several OEM part numbers from brands like AYP, Husqvarna, Partner, Jonsered, McCulloch, Rally, and Craftsman.