When your smaller disc harrow isn’t slicing through crop residue the way it should, you know it’s time for fresh blades. This 18-inch notched disc blade brings that aggressive cutting action back to your lighter tillage operations, turning stubble and light residue into properly sized pieces that’ll break down instead of causing problems at planting time.
What You’re Getting
- Sharp notched edge design that creates scissor action to slice through tough residue other blades just push around
- Quality Boron 15B26 steel construction that maintains 46-52 Rockwell hardness for long-lasting sharpness
- Proper 3/16-inch thickness for durability without excessive weight on smaller harrows
- Single punch mounting hole that fits your 1-1/2 inch square axle setup perfectly
- Standard 1.63-inch concavity that provides good soil throw and mixing action
Built for Real Farm Work
This blade is sized right for compact and utility disc harrows working smaller fields, food plots, or finish tillage operations. The 18-inch diameter gives you good cutting ability without the weight and power requirements of larger blades, making it perfect for tractors in the 40-100 horsepower range doing light to moderate residue management.
Made to Last
Osmundson doesn’t cut corners on blade materials. This Boron steel maintains the sweet spot for hardness – tough enough to hold an edge through seasons of use, but not so brittle it’ll chip when you hit that inevitable rock or root. The 3/16-inch thickness provides good durability while keeping weight manageable for your smaller harrow frame.
Installation Notes
This is a direct replacement – no modifications needed if your current setup uses 1-1/2 inch square axles. When replacing blades, swap out the whole gang at once since mixing worn and new blades creates uneven cutting that leaves streaky field conditions. Check your spool spacing while you’ve got things apart – notched blades sometimes need slightly different spacing than smooth ones for best performance.
