Fennoral AC04215 8" Expand-It Attachment/Heavy Duty Edger Steel Serrated Blade Compatible with Ryobi UT50500, UT15518, RY15518, RYEDG11, P2310 and P2300B, with 1" Center Hole

What It Is

This is an aftermarket 8-inch steel serrated edger blade for Ryobi Expand-It attachment-capable trimmers and edgers. Designed for heavy-duty edging along driveways, sidewalks, and flower beds, it replaces the OEM blade on compatible Ryobi models.

Fitment & Compatibility

Check your machine’s attachment shaft: This blade fits only Ryobi Expand-It systems with a 1-inch center hole and a straight shaft (not curved). It works with models: UT50500, UT15518, RY15518, RYEDG11, P2310, and P2300B. Not compatible with Ryobi 40V or 18V brushless trimmer heads that use a different blade mount.
Measure before buying: Confirm your current blade’s center hole diameter is exactly 1 inch. If it’s 7/8-inch or 1-1/4-inch, this won’t fit.
OEM vs aftermarket: This is a direct replacement for Ryobi part AC04215. No adapter or modification needed.

Key Things to Know

• Steel vs plastic: Serrated steel cuts through thick grass, small roots, and packed dirt better than stock plastic blades. Expect longer life but noisier operation.
• Installation: Simple – remove nut, swap blade, retighten to 25-30 ft-lbs. Use thread locker if your shaft has worn threads.
• Safety: The serrated edge is sharp. Wear heavy gloves during installation. Never use on wet grass – risk of kickback.
• Balance: Aftermarket blades may need light balancing. If vibration is excessive, file the heavy side slightly.

Should You Buy It

Yes, if you own a compatible Ryobi Expand-It edger and need a cheap, durable upgrade over the stock blade. It handles tough edging jobs without breaking, but skip it if you prefer a cleaner cut on fine lawns – serrated edges can leave a slightly ragged finish. For $8.99, it’s a solid value for heavy-duty use.