When your disc blades start looking more like smooth wheels than cutting tools, it’s time for a replacement that’ll actually slice through residue instead of just pushing it around. This 30-inch notched disc blade brings aggressive cutting action back to your harrow, turning tough corn stalks and matted crop residue into properly sized pieces that’ll break down instead of causing planter problems next spring.
Key Features
- Built from Boron 15B26 steel with 46-52 Rockwell hardness – tough enough to hold an edge through acres of tillage but won’t shatter on hidden rocks
- Notched edge creates a scissor action that slices through tough stalks other blades just bend over
- 5/16-inch thickness provides the beef needed for long service life in demanding conditions
- Combo hole design with both square and round mounting options for versatile installation
- 4-inch standard concavity throws soil aggressively for good residue burial and field leveling
Built for Heavy-Duty Farm Work
This blade is sized for the larger disc harrows that handle serious acreage – the kind of machines that need to cut through heavy corn residue, incorporate cover crops, and prepare clean seedbeds efficiently. At 30 inches, it provides the aggressive action needed for primary tillage operations where smaller blades would just get overwhelmed.
Made to Last
The Boron 15B26 steel construction maintains the perfect hardness range – hard enough to hold an edge through tough tillage work, but not so brittle it shatters when you hit that inevitable field stone. The 5/16-inch thickness provides the durability needed for long service life, while the heat-treated steel resists wear and maintains cutting performance season after season.
Good to Know
Field-proven tip: notched blades excel in heavy residue but can be too aggressive in light soils – many operators run notched blades on front gangs for cutting, smooth blades on rear gangs for finishing. Track your blade wear by measuring diameter annually; most blades need replacing when they’ve lost 3-4 inches from the original 30-inch size. Consider ordering full gang sets since shipping costs are often the same and you’ll need them eventually.
