Crimp Center Disc Blade with Notched Edge for 28-Inch Disc Harrows

Description

When you’re working heavy residue or breaking new ground, regular smooth disc blades just don’t get the job done—they push and bend crop material instead of cutting through it. That’s where this 28-inch crimp center disc blade comes in handy. With its aggressive notched edge and deep concave design, it attacks tough corn stalks and matted cover crops like they mean it, turning tangled residue into properly sized pieces that’ll break down instead of wrapping around your planter come spring.

What You’re Getting

• Notched edge design creates scissor action that slices through the toughest crop residue instead of bending it over
• 8-inch crimp center design provides maximum soil mixing and residue incorporation for better field finish
• Heavy-duty Boron 15B26 steel construction with 46-52 Rockwell hardness holds an edge through thousands of acres
• Standard 3.88-inch concavity throws soil aggressively for effective residue burial and leveling
• Single punch mounting hole fits 1-1/2 inch square axles for direct replacement on most disc harrows

Built for Real Farm Work

This blade fits disc harrows with 1-1/2 inch square axles—the standard size found on most medium to heavy-duty harrows used for primary tillage and residue management. Whether you’re working continuous corn ground, breaking down cover crops, or sizing stalks after harvest, the crimp center design moves more soil than standard blades while the notched edge ensures clean cutting action in the heaviest conditions.

Made to Last

Osmundson doesn’t mess around with blade materials—this Boron steel maintains the perfect balance between holding a sharp edge and resisting breakage when you hit that inevitable rock or root. The 1/4-inch thickness provides the beef needed for long service life, while the precise heat treatment ensures consistent hardness from edge to center.

Installation Notes

This is a direct replacement that threads right onto your existing square axle. When replacing blades, never mix worn and new on the same gang—the diameter difference creates uneven cutting that leaves mohawk strips in your field. Check your blade spacing while the gangs are apart; notched blades sometimes need slightly different spacing than smooth ones for optimal performance.