Description
When you need serious cutting power that won’t quit, this 28-inch smooth disc blade delivers the size and strength to handle your toughest tillage jobs. 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. The 5/16-inch thickness provides the beef needed for long service life, while the 4.25-inch concavity moves serious soil and buries residue where it needs to be.
What You’re Getting
- 28-inch diameter for maximum ground coverage and aggressive tillage action
- Heavy-duty 5/16-inch (8mm) thickness that stands up to rocks, roots, and hard pan
- Smooth edge design perfect for finishing work and creating a clean seedbed
- Single punch mounting hole for secure, wobble-free operation
- Quality Boron steel construction that holds its edge season after season
Built for Real Farm Work
This blade fits disc harrows using 2-inch round axles and handles everything from primary tillage in tough sod to secondary operations in crop residue. The 28-inch size makes it ideal for larger harrows that need to cover ground efficiently while still providing the weight and cutting ability to work through heavy conditions.
Made to Last
Osmundson doesn’t mess around with blade materials. No fancy coatings here – just quality steel that works. The smooth edge design reduces wear from abrasive soils while still providing excellent cutting action, and the standard concavity gives you the soil-moving performance you need without being overly aggressive.
Good to Know
When replacing blades, never mix worn and new on the same gang – the diameter difference creates uneven cutting that leaves mohawk strips. The single punch mounting means checking for elongated holes from wear – loose blades wobble and wear prematurely. Consider replacing the whole gang at once for best results.
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