Description
When your 16-inch disc blades start losing their bite and pushing residue around instead of cutting through it, you know it’s time for fresh steel. This notched disc blade from Osmundson puts the aggressive cutting action back in your harrow, turning stubborn corn stalks and matted cover crop residue into properly chopped material that won’t hair-pin around your planter next spring.
What You’re Getting
- Notched edge design creates scissor action that slices through tough stalks other blades just bend over
- Made from Boron 15B26 steel with 46-52 Rockwell hardness for the right balance of toughness and durability
- 7-gauge thickness (4.5mm) gives you solid cutting performance without being too heavy for smaller harrows
- Standard 1.50-inch concavity provides good soil mixing and residue burial
- Combo hole design fits most standard square axle harrow setups
Built for Real Farm Work
This blade fits disc harrows with 1-inch square by 1-1/8-inch square axles—a common setup on many mid-sized harrows used for primary tillage and residue management. Whether you’re working corn ground, preparing seedbeds, or managing cover crops, the 16-inch diameter gives you good penetration and mixing without being too aggressive for lighter soils or finishing work.
Made to Last
The 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. Osmundson doesn’t mess around with blade materials—this is quality steel that holds up to real farm conditions season after season.
Good to Know
When replacing blades, never mix worn and new on the same gang since the diameter difference creates uneven cutting. Check your axle holes regularly for wear—loose blades wobble and wear out faster. A quick tip from the field: coat blade edges with used oil when storing your harrow to prevent rust pitting that kills cutting performance.
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