The STIHL 40007133800 is a genuine 4-tooth grass cutting blade, designed for efficient and robust cutting of tough grass and weeds. With a diameter of 230mm and a 20mm bore, this durable steel blade ensures reliable performance and a clean cut. It is an essential accessory for maintaining landscapes and is compatible with a range of STIHL brushcutters and clearing saws, including models FS 55, FS 56, FS 80, FS 85, FS 87, FS 90, FS 94, FS 100, FS 110, FS 120, FS 130, FS 200, FS 240, FS 250, FS 260, FSA 90, FSA 130, and FR 130 T. Always ensure proper installation and safety precautions when using cutting attachments.