AMTHKNO AC04215 Reversible Heavy Duty Hardened Steel Edger Blade - for Replacement Ryobi 8 Inch Edger Blade, Fits Edgers Models UT50500, UT15518, RY15518, RYEDG11, P2310 and P2300B. (2)

What It Is

This is a direct replacement 8-inch reversible edger blade made from hardened steel, designed for Ryobi gas and electric edgers. It cuts clean edges along driveways, sidewalks, and garden beds, and can be flipped to double its usable life.

Fitment & Compatibility

This blade fits Ryobi edgers with an 8-inch blade and a 1-inch arbor hole. Confirm your model number matches one of these: UT50500, UT15518, RY15518, RYEDG11, P2310, or P2300B. It also fits many other Ryobi 8-inch edgers—measure your current blade’s diameter (8 inches) and center hole size (1 inch) to be sure. This is an aftermarket part, not OEM Ryobi, but it matches the original blade dimensions exactly. If your edger uses a different arbor size (e.g., 7/8-inch or 25mm), this blade will not fit.

Key Things to Know

• Hardened steel – More durable than standard steel; holds an edge longer and resists bending on roots or rocks.
• Reversible design – When one side dulls, flip it over for a fresh cutting edge. This effectively doubles blade life.
• Installation difficulty – Easy; requires one wrench to remove the center bolt. No special tools needed. Torque to manufacturer spec (typically 30-40 ft-lbs).
• Common gotcha – The blade is uncoated (no paint or anti-rust layer). Wipe it dry after use and store in a dry place to prevent rust.

Should You Buy It

If you own a compatible Ryobi 8-inch edger and want a tougher, longer-lasting blade that’s reversible and easy to install, this is a solid upgrade over standard OEM blades at a fair price. Avoid if your edger uses a non-standard arbor size or if you need a coated blade for wet climates.