This genuine UNIA 511720303 cutter knife is designed for optimal performance in UNIA agricultural shredders and mulchers, specifically those requiring a 1.8M working width. Measuring 175mm in length, 60mm in width, and 10mm in thickness, this durable knife ensures efficient cutting and shredding. It features a 20.5mm mounting hole diameter and weighs 0.85 kg, making it an essential component for maintaining the cutting efficiency of your UNIA machinery.