Description
When your disc harrow starts pushing residue around instead of slicing through it, you know it’s time for new blades. This 20-inch notched disc blade from Osmundson brings back the aggressive cutting action you need to properly size corn stalks, wheat stubble, and other crop residue instead of just rolling over it and creating a mess for planting season.
What You’re Getting
- Sharp notched edge design that cuts through tough residue with a scissoring action
- Heavy-duty Boron 15B26 steel construction that maintains hardness through acres of tough tillage
- Standard 1.88-inch concavity creates proper soil movement and residue mixing
- Combo hole design fits both square and round mounting configurations
- 9-gauge thickness provides durability without unnecessary weight
Built for Real Farm Work
This blade fits disc harrows using 1-1/8 square by 1-1/4 square axles, covering a wide range of equipment from different manufacturers. Whether you’re working corn ground, preparing a seedbed, or incorporating cover crops, the notched edge excels in heavy residue conditions where smooth blades just can’t get the job done.
Made to Last
The Boron steel construction hits that sweet spot—hard enough at 46-52 Rockwell to hold a sharp edge through tough conditions, but not so brittle it’ll shatter when you hit that hidden rock. The 3.5mm thickness gives you plenty of material for long service life while maintaining proper balance on your harrow.
Good to Know
When replacing disc blades, never mix worn and new ones on the same gang—the diameter difference creates uneven cutting that’ll leave you with mohawk strips in your field. Consider ordering a full gang set since you’ll need them eventually, and shipping costs are often the same whether you order one blade or twenty.
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