When your disc blades start rolling over crop residue instead of slicing through it, your harrow’s telling you it’s time for replacements. This 18-inch smooth disc blade from Osmundson puts the cutting edge back in your tillage operation, turning matted corn stalks and residue into properly sized pieces that’ll incorporate into your soil profile instead of wrapping around everything in sight.
What You’re Getting
- Made from Boron 15B26 steel with 46-52 Rockwell hardness that holds its edge through tough field conditions
- 9 gauge thickness (3.5mm) gives you the right balance of durability and cutting action
- Smooth edge design excels at finishing work and sizing residue without being too aggressive
- Single punch hole design fits 1-1/8 inch round axle harrows perfectly
- Standard concavity specification of 1.63 inches provides proper soil flow and mixing
Built for Real Farm Work
This blade fits disc harrows with 1-1/8 inch round axles, typically found on smaller to mid-size harrows used for secondary tillage operations. Whether you’re preparing seedbeds, incorporating fertilizer, or cleaning up after harvest, this smooth blade gives you the finishing touch your fields need without over-working the soil.
Made to Last
The Boron 15B26 steel maintains perfect hardness – hard enough to hold an edge through acres of tough tillage, but not so brittle it shatters when you clip that hidden field stone. This isn’t some cheap import that’ll chip and dull after a few passes – it’s built to handle real farm conditions season after season.
Good to Know
This is a direct replacement that mounts with the single punch hole system. Track your blade wear by measuring diameter annually – most blades are shot when they’ve lost 3-4 inches. Consider ordering full gang sets since shipping’s often the same, and you’ll need them eventually. When storing your harrow, coat blade edges with used oil to prevent rust pitting that ruins cutting ability.
