THTEN 18 Pack Replacement ACFHRL2 Weed Eater Blade Compatible with Ryobi 18V,24V and 40V String Trimmers,Fits for RY40210,RY40210A

What It Is

This 18-pack of replacement ACFHRL2 weed eater blades is designed for Ryobi 18V, 24V, and 40V string trimmers. It’s a drop-in upgrade from string to fixed-blade cutting for clearing heavy weeds, thick grass, and light brush.

Fitment & Compatibility

• Blade type: ACFHRL2 (3-point star blade, 8-inch diameter, 1-inch arbor hole).
• Fits Ryobi models: RY40210, RY40210A, and most Ryobi 18V/24V/40V trimmers with a straight shaft and 1-inch arbor. Does not fit curved-shaft or older 4-cycle trimmers.
• Check before buying:
  • Measure your trimmer’s arbor hole diameter (must be 1 inch).
  • Verify your model uses a blade adapter (most Ryobi 40V trimmers require one, sold separately).
  • These are aftermarket, not OEM Ryobi parts. May not fit if your trimmer uses a proprietary mounting system.

Key Things to Know

• Installation: Requires removing the string head, installing a blade adapter (if needed), and tightening with a wrench. Moderate difficulty; watch a YouTube video first.
• Cutting performance: Blades are sharp out of the box and handle thick weeds well, but they dull faster than OEM blades—expect to replace after 3–5 uses in heavy brush.
• Common gotchas: The included screws/bolts may not match all Ryobi models. Some users report the blades are slightly thinner than OEM, leading to wobble at high RPM. Check balance before full use.
• Safety: Fixed blades are more dangerous than string—wear eye/leg protection and never use near rocks or fences (blades can shatter).

Should You Buy It

If you already own a compatible Ryobi trimmer and need a cheap, disposable solution for clearing heavy weeds, this pack delivers good value. Avoid it if you want long-lasting OEM performance, have a curved-shaft trimmer, or need a perfect fit without adapters. For occasional heavy-duty use, it’s a solid budget choice.