When your disc harrow’s blades start looking more like smooth wheels than cutting tools, it’s time for replacements that’ll actually slice through residue instead of just pushing it around. This 22-inch notched disc blade from Osmundson brings aggressive cutting action back to your harrow, turning tough corn stalks and matted crop residue into properly sized pieces that’ll break down instead of hair-pinning around your planter next spring.
What You’re Getting
- Each notch creates a scissor action that slices through tough stalks other blades just bend over
- Boron 15B26 steel maintains the perfect hardness range – hard enough at 46-52 Rockwell to hold an edge through acres of tough tillage, but not so brittle it shatters when you clip that hidden field stone
- The 1/4-inch thickness provides the beef needed for long service life, while the 2.50-inch concavity creates aggressive soil-throwing action that buries residue and levels fields
- Single punch mounting hole fits standard 1-1/2 inch square axles with proper spacing
Built for Real Farm Work
Your disc harrow needs to do more than just roll over crop residue – it needs to cut, size, and mix that material into the soil profile. 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. This blade works on any disc harrow using 1-1/2 inch square axles – from offset discs to tandem units.
Made to Last
Osmundson doesn’t mess around with blade materials. No fancy coatings here – just quality steel that works. The Boron steel construction handles everything from rocky fields to heavy clay, maintaining its cutting edge through season after season of tough tillage work.
Good to Know
When replacing blades, never mix worn and new on the same gang – the diameter difference creates uneven cutting that leaves mohawk strips. Check your axle holes for wear while you’re swapping blades – loose mounting points cause wobble that wears everything out faster. Consider ordering full gang sets since shipping’s often the same and you’ll need them eventually.
