8TEN LawnRAZOR Blade for Honda Walk Behind 21 inch Decks 72511-960-000 72511-VA2-690 72511-VA4-000

What It Is

The 8TEN LawnRAZOR Blade is a direct-replacement mulching blade designed for Honda walk-behind mowers with 21-inch cutting decks. It improves grass clipping breakdown and lawn appearance compared to standard blades.

Fitment & Compatibility

Before buying, confirm your mower has a 21-inch deck and uses one of these OEM Honda part numbers: 72511-960-000, 72511-VA2-690, or 72511-VA4-000. Measure your blade length (21 inches end-to-end), center hole diameter (usually 1 inch), and drive pin hole pattern (typically two 7/16-inch holes spaced 3 inches apart). This blade fits most Honda HRX, HRC, and HRS series models from the early 2000s onward. Check your owner’s manual or remove the current blade to verify dimensions. Avoid assuming all 21-inch Honda blades are identical—older models may differ.

Key Things to Know

• Quality: 8TEN uses heat-treated steel with a painted finish. It’s a solid mid-range option, but not as durable as OEM or premium aftermarket blades (e.g., Oregon). Expect 1-2 seasons of normal use.
• Installation: Simple bolt-on replacement. Use a torque wrench to tighten the blade bolt to 30-35 ft-lbs (check your mower’s spec). A common gotcha: the blade must be oriented with the cutting edge facing the direction of rotation (usually counterclockwise when viewed from above).
• Performance: The mulching design lifts clippings for finer cutting, but it may struggle in tall, wet grass. Sharpen or replace every 25-30 hours of use for best results.
• Gotcha: Some users report the blade is slightly thicker than OEM, which can cause fitment issues with certain Honda blade adapters. Test before fully tightening.

Should You Buy It

Buy it if you want an affordable, direct-fit mulching blade for your Honda 21-inch walk-behind and don’t need premium-grade longevity. It’s a good budget option for light to medium mowing, but if you cut thick, damp grass frequently or want maximum durability, consider OEM or a higher-end aftermarket brand.