Upgraded the shitty tri-blade with a real brush cutter blade, this thing kicks ass now! Single swipe through an inch+. Cuts through grape vine, brush, mulberry, etc quite well. : r/ryobi
RYOBI Tri-Arc Brush Cutter Blade and Expand-It Brands (2-Pack) AC04105-2 - The Home Depot
Ryobi AC04105 8 Inch Heavy Duty Brush Cutter Blade New | eBay