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
WORX Nitro Brush Cutter Attachment in the String Trimmer Attachments department at Lowes.com
RYOBI 25 cc 2-Stroke Full Crank Gas Brush Cutter RY254BC - The Home Depot
Amazon.com : NEW Home & Garden Outdoor Equipment Heavy Duty Brush-Cutter Attachment : Patio, Lawn & Garden
Ryobi BC30 Gas Powered Brush Cutter with Expand-It Shaft Excellent | eBay