When crop residue fights back harder than your current disc blades, it’s time for notched blades that actually slice through tough stalks instead of just pushing them around. This 18-inch replacement blade from Osmundson brings aggressive cutting action back to your harrow, turning those stubborn corn stalks and matted wheat straw into properly sized pieces.
What You’re Getting
- Aggressive notched edge design that creates scissor action through residue
- Made from Boron 15B26 steel with 46-52 Rockwell hardness for long-lasting edge retention
- 9-gauge thickness (3.5mm) that handles tough tillage without bending
- Combo hole design fits 7/8 square x 1 round axles perfectly
- Standard 1.63-inch concavity for proper soil mixing and residue burial
Built for Real Farm Work
Each notch creates a scissor action that slices through tough stalks other blades just bend over. This blade works great in tandem disc harrows working heavy residue conditions – whether that’s continuous corn, thick wheat stubble, or heavy cover crop material. Notched blades excel in heavy residue but can be too aggressive in light soils or minimal trash conditions.
Made to Last
Boron steel maintains the perfect hardness range – hard enough to hold an edge through acres of tough tillage, but not so brittle it shatters when you clip that hidden field stone. No fancy coatings here – just quality steel that works. The 9-gauge thickness gives you the durability needed for season after season of reliable service.
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. Consider ordering full gang sets – shipping’s often the same, and you’ll need them eventually. Many operators run notched blades on front gangs for cutting, smooth on rear for finishing.
