Description
When your disc harrow’s cutting edge starts looking more like a dull butter knife than a soil-working tool, it’s time for a replacement that’ll actually slice through residue instead of just pushing it around. This 28-inch smooth disc blade from Osmundson brings back the crisp cutting action your harrow needs to properly size residue and create that smooth seedbed finish you’re after.
What You’re Getting
- 28-inch diameter with 5/16-inch thickness for serious durability and long service life
- Boron 15B26 steel maintains 46-52 Rockwell hardness – tough enough to hold an edge but not so brittle it shatters on rocks
- 4.25-inch standard concavity creates aggressive soil-throwing action to bury residue and level fields
- Single punch mounting hole for direct replacement – no modifications needed
- Smooth edge design excels at finishing passes and creating level seedbeds
Built for Real Farm Work
These blades fit any disc harrow using 1-1/2 inch square axles with appropriate spacing. Many operators run smooth blades on rear gangs for finishing after using notched blades up front for cutting. Whether you’re following the planter, working corn ground, or preparing wheat stubble for the next crop, this blade handles the conditions you’ll face season after season.
Made to Last
Osmundson doesn’t mess around with blade materials – this Boron steel maintains the perfect hardness range for long-lasting performance in tough field conditions. The 8mm thickness gives you the beef needed to handle rocks, roots, and years of hard use without bending or chipping.
Installation Notes
Direct replacement for worn blades – just remove the old one and slide this on your existing axle. When replacing blades, never mix worn and new on the same gang – the diameter difference creates uneven cutting that leaves mohawk strips. Consider ordering full gang sets – shipping’s often the same, and you’ll need them eventually.
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