go to this YouTube link https://youtu.be/8lrFeXO0i9o
For compatibility with your Troy Bilt model, please contact the manufacturer, Troy Bilt, to confirm. ECHO does not have any information on the Troy Bilt models.
I tried to make it fit but the center hole needs to be 1 inch
The 8" 80-Tooth Brush Blade, Part #69500120331, is designed for use with approved ECHO trimmers and brushcutters that feature a 20 mm arbor.
Talk to a real Echo dealer at a outdoor equipment sales
I found a different blade online that has an 1 inch center hole.
I tried on a Ryobi and the center hole needs to be 1 inch. That blade has smaller center hole. I bought another blade on line that fits. I have not tried it yet.
No it will not work. The pilot hole is not same diameter as the mating hole on the PAS. I returned the Echo Brush Blade and bought the RYBRC77 Brush Cutter Attachment, and I am happy with that.
I tried on a Ryobi and the center hole needs to be 1 inch.