Description
When your disc 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 20-inch notched 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 over winter.
What You’re Getting
- Notched edge design creates scissor action that cuts through stalks other blades just bend over
- 3/16-inch thickness balances durability with cost-effectiveness for smaller harrows
- Boron 15B26 steel hardened to 46-52 Rockwell stays sharp through acres of tough tillage
- 1.88-inch concavity throws soil properly for good mixing and residue burial
- Single punch mounting hole fits round axle gangs directly
Built for Real Farm Work
This blade fits disc harrows using 1-1/2 inch round axles and works great on smaller utility harrows used for garden plots, food plots, or lighter tillage operations. The 20-inch size is popular on compact and mid-size harrows where you need effective cutting without the weight and cost of larger blades.
Made to Last
Osmundson uses quality Boron steel that’s heat-treated to the right hardness—tough enough to hold an edge through seasons of work, but not so brittle it shatters when you hit a hidden rock. No fancy coatings here, just honest steel that does the job.
Good to Know
When replacing blades, never mix worn and new ones on the same gang since the diameter difference creates uneven cutting. Check your spool spacing while the gang’s apart—notched blades sometimes need slightly different spacing than smooth ones for best performance.
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