Commercial 255mm (10") - correctly sized for superior fast cutting compared to competitor blades, Premium Carbide Tipped 40 Tooth - no sharpening required, Standard size Arbor Bore 25.4mm (1"), Suits All 1" Arbor Straight Shaft Brush Cutters Multitools - Baumr-AG, MTM, Stihl, Husqvarna, Ryobi, Honda, Shindaiwa, Any Other Brush Cutte