10 Packs 3 Inch Wide Steel Flail Hammer Blades, 40Cr Alloy Steel T-Shaped Replacement Flail Blades for Tractor Flail Mowers

What It Is

These are 10-pack steel flail hammer blades, 3 inches wide, made from 40Cr alloy steel, designed as T-shaped replacements for tractor-mounted flail mowers. They’re used for heavy-duty brush, grass, and weed cutting on agricultural or commercial mowers.

Fitment & Compatibility

Before buying, verify your flail mower’s blade mount type (e.g., Y-blade, hammer, or scoop) and hanger spacing. These T-shaped blades fit most standard flail mower rotors with 3-inch-wide blade slots and a center hole diameter of typically 8-10 mm (measure yours). Check your mower brand (e.g., John Deere, Bush Hog, Caroni, or Alamo) and confirm OEM part numbers—generic aftermarket blades may not match all models. Measure your existing blade’s length (usually 3-4 inches total) and thickness (often 1/4-3/8 inch). If your rotor uses a different blade shape or pin size, these won’t work.

Key Things to Know

• Material quality: 40Cr alloy steel is durable for heavy cutting but less impact-resistant than hardened steel; expect faster wear on rocky terrain.
• Installation difficulty: Simple bolt-on replacement—no special tools, but you’ll need a wrench and possibly a pin punch. Always replace in sets to maintain balance.
• Common gotchas: These blades may not fit mowers with proprietary mount systems (e.g., some Ford or New Holland models). Check if your rotor uses a single bolt or a pin-and-cotter setup—these work with standard pin mounts.
• Quantity: 10 blades cover most small to medium flail mowers (e.g., 4-5 foot decks), but larger decks (6+ feet) may need two packs.

Should You Buy It

If you need a budget-friendly, durable set for regular brush cutting on a standard flail mower and you’ve confirmed the dimensions and mount type match, this is a solid pick. Avoid if your mower uses non-standard blades or you frequently cut through debris that could cause impact damage—opt for heat-treated steel instead.