10" 100 Teeth Carbide Tip Brush Cutter, Trimmer, Weed Eater Blade UNIVERSAL FIT. It fits either 1" (25.4 mm) or 20 mm arbor Carbide Tipped Trimmer Brushcutter Blades 10" diameter - 100 Teeth brazed-welded Carbide tipped blade is estimated to last about 10 times longer than plain steel More teeth creates more aggregate cutting surfaces for longer lasting durability Made by CE certified Manufacturer.