Description
When you’re pulling a disc harrow through your fields, every blade matters. A dull or worn disc blade pushes soil around instead of cutting and mixing it properly, leaving you with poor seedbed preparation and uneven residue management. This 26-inch smooth disc blade from Osmundson gives you the clean cutting action you need to slice through residue, size crop stubble, and create the level seedbed that makes planting go smoothly.
What You’re Getting
- Quality Boron 15B26 steel construction that’s heat-treated to 46-52 Rockwell hardness – tough enough to hold an edge through acres of tough ground
- Standard 4.00-inch concavity that throws soil properly for good mixing and leveling action
- Combo hole design fits both square and round axle configurations with the 1-1/2″ square x 1-3/4″ round sizing
- Smooth edge for finishing work and lighter tillage conditions where aggressive cutting isn’t needed
- Heavy 1/4-inch thickness gives you the durability needed for long service life in demanding conditions
Built for Real Farm Work
This blade fits disc harrows running the 1-1/2 inch square x 1-3/4 inch round axle setup. Whether you’re working corn ground after harvest, preparing bean stubble for the next crop, or sizing cover crop residue before planting, smooth blades like this excel in lighter tillage situations where you want to cut and mix without being overly aggressive. Many operators run smooth blades on rear gangs for finishing after notched blades on the front gangs handle the heavy cutting.
Made to Last
Osmundson doesn’t mess around with blade materials. This Boron 15B26 steel maintains the perfect hardness range – hard enough at 46-52 Rockwell to hold an edge through acres of tough tillage, but not so brittle it shatters when you clip that hidden field stone. The quarter-inch thickness provides the beef needed for seasons of hard use while the standard concavity creates proper soil flow.
Installation Notes
When replacing blades, never mix worn and new on the same gang – the diameter difference creates uneven cutting that leaves mohawk strips. The combo hole design makes installation straightforward on your existing axle setup. Track your blade wear by measuring diameter annually; most blades are shot when they’ve lost 3-4 inches. Check spool spacing while you’ve got gangs apart – proper spacing keeps blades cutting cleanly without interference.
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