Description

When you’re trying to work through heavy corn stalks or matted cover crop residue and your disc harrow is just pushing material around instead of cutting it up, you need the aggressive action of a notched blade. This 28-inch Osmundson disc blade brings serious cutting power to your tillage operation, with notches that create a scissor action to slice through tough stalks that smooth blades just bend over.

Key Features

Notched edge design creates aggressive cutting action for heavy residue conditions
Boron 15B26 steel construction maintains 46-52 Rockwell hardness for long-lasting edge retention
8mm thickness (5/16 inch) provides durability for tough tillage applications
Standard 4.25-inch concavity throws soil effectively for good burial and mixing
Combo hole design fits both square and round axle configurations

Built for Real Farm Work

This blade excels in high-residue situations like continuous corn, after cover crops, or following soybean harvest with heavy stalk loads. The 28-inch diameter gives you plenty of cutting circumference before the blade wears down, and the notched edge stays aggressive longer than smooth blades in trashy conditions. Perfect for disc harrows working conservation tillage systems where residue management is critical.

Made to Last

Osmundson doesn’t cut corners on materials – this Boron steel holds its edge through acres of tough tillage while staying tough enough to handle the occasional field stone. The heat-treated construction maintains the right balance between hardness and toughness, so you get long blade life without brittle failures.

Good to Know

The combo hole design means this blade works with both 1-1/2 inch square and 1-5/8 inch round axles, making it versatile for different harrow setups. When replacing worn blades, never mix new and old on the same gang – the diameter difference creates uneven cutting. Track your blade wear by measuring diameter annually; most operators consider blades worn out when they’ve lost 3-4 inches from the original size.