Amazon.com : PLUMIA (2-Set 10" x 3 Teeth Carbon Steel Brush Cutter Weed Eater Blades with Blade Adapter Attachment for 20mm or 25.4mm Arbor - Compatible with Husqvarna, Stihl, Ego, and More :
EXPAND-IT™ Brush Cutter Attachment | RYOBI Tools
Ryobi AC04105 8 Inch Heavy Duty Brush Cutter Blade New | eBay