When your disc harrow starts leaving strips of uncut residue and isn’t burying trash like it should, worn blades are usually the culprit. This 22-inch notched disc blade from Osmundson brings back the aggressive cutting action your harrow needs, turning tough corn stalks and matted crop residue into properly sized pieces that’ll break down over winter instead of wrapping around your planter next spring.
What You’re Getting
- Notched edge design creates scissor action that slices through tough stalks other blades just push around
- Boron 15B26 steel maintains perfect hardness at 46-52 Rockwell to hold an edge through acres of tough tillage without shattering
- Combo hole mounting system fits both square and round axle configurations on a wide range of harrows
- 7-gauge thickness (4.5mm) provides durability without excessive weight that strains your harrow frame
- 2.50-inch concavity creates the soil-throwing action needed to bury residue effectively
Built for Real Farm Work
This blade fits disc harrows with 1-1/8 square by 1-1/4 square axle spacing, commonly found on mid-size harrows used for primary tillage and residue management. Whether you’re working corn ground in the fall or prepping soybean stubble for next season’s crop, these blades handle the heavy lifting that keeps your operation moving.
Made to Last
The Boron steel construction maintains hardness without brittleness, while the no-coating approach means quality steel that simply works. This blade is built to handle temperature swings, rocky conditions, and the constant vibration of field work season after season.
Good to Know
Never mix worn and new blades on the same gang – the diameter difference creates uneven cutting that leaves mohawk strips. Notched blades excel in heavy residue but can be too aggressive in light soils, so many operators run notched on front gangs for cutting, smooth on rear for finishing. Check your blade spacing when replacing – notched blades sometimes need slightly different spacing than smooth ones for best performance.
