Description
When your disc harrow’s blades start looking more like smooth wheels than cutting tools, it’s time for replacements that’ll slice through residue instead of just pushing it around. This 28-inch notched disc blade from Osmundson brings aggressive cutting action back to your disc harrow, turning tough corn stalks and matted residue into properly sized pieces that break down instead of creating problems come spring.
What You’re Getting
- Notched edge design creates scissor action that slices through tough stalks other blades just bend over
- Boron 15B26 steel with 46-52 Rockwell hardness – hard enough to hold an edge through acres of tough tillage, but not so brittle it shatters when you clip field stones
- 1/4-inch thickness provides the strength needed for long service life in heavy residue conditions
- 4.25-inch standard concavity creates aggressive soil-throwing action that buries residue and levels fields
- Single punch hole design fits 1-1/2 inch square axle harrows perfectly
Built for Real Farm Work
In high-residue conditions like continuous corn or after cover crops, that notched edge makes the difference between effective residue management and a plugged-up mess that forces you to make extra passes. These blades fit any disc harrow using 1-1/2 inch square axles with appropriate spacing. They’re the go-to choice for operators dealing with heavy crop residue who need to get the job done in fewer passes.
Made to Last
Osmundson doesn’t mess around with blade materials – no fancy coatings here, just quality steel that works. This 28-inch blade gives you plenty of cutting surface while being sized right for medium to large disc harrows that handle serious acreage. The Boron steel construction means you’ll get consistent performance season after season.
Good to Know
Field-proven wisdom: Notched blades excel in heavy residue but can be too aggressive in light soils or minimal trash conditions. When replacing blades, never mix worn and new on the same gang – the diameter difference creates uneven cutting that leaves mohawk strips. Consider ordering full gang sets – shipping’s often the same, and you’ll need them eventually.
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