Shallow Concavity Smooth Disc Blade for Precision Tillage Applications

Description

When you’re working fields where residue management matters as much as soil prep, this 28-inch smooth disc blade delivers the precision you need. The shallow concavity design means less aggressive soil throwing but better residue sizing—perfect for minimum-till operations where you want to cut and mix without burying everything. That single punch mounting on a 1-5/8 inch round axle gives you a secure fit that won’t wobble or wear prematurely.

What You’re Getting

• Shallow 2.88-inch concavity that sizes residue without over-working the soil profile
• Smooth edge that cuts cleanly through crop residue without hair-pinning or bunching
• Quality Boron 15B26 steel hardened to 46-52 Rockwell for long blade life and edge retention
• Single punch mounting that reduces stress points and prevents cracking under field conditions
• 28-inch diameter provides good ground contact while maintaining maneuverability

Built for Real Farm Work

This blade shines in precision tillage applications where you need controlled soil disturbance. The shallow concavity makes it ideal for minimum-till systems, cover crop termination, and seedbed prep where you want to maintain soil structure. Whether you’re working corn stubble in the fall or sizing wheat residue before planting, this blade gives you that finishing touch without the aggressive action of deeper concavity blades.

Made to Last

Osmundson doesn’t mess around with blade materials. This Boron 15B26 steel maintains the perfect balance—hard enough to hold a sharp edge through acres of tough conditions, but not so brittle it shatters when you clip that hidden field stone. The 8mm thickness provides plenty of durability while keeping the blade light enough for responsive soil following.

Good to Know

The single punch hole means straightforward installation—just slide it onto your axle and secure with the proper hardware. Check for elongated holes from wear during your pre-season inspection, as loose blades create uneven cutting and premature wear. Track your blade wear by measuring diameter annually; most blades lose their effectiveness when they’ve worn down 3-4 inches from original size.