Description

When your disc harrow starts pushing crop residue around instead of cutting through it, you know it’s time for new blades. This 20-inch smooth disc blade brings that clean-cutting action back to your tillage operation, giving you the precise soil preparation you need for next season’s success.

What You’re Getting

Osmundson quality construction with Boron 15B26 steel that holds an edge season after season
9-gauge thickness for the right balance of durability and soil penetration
Combo square hole design fits both 1-1/8″ and 1-1/4″ square axles for versatility
1.88-inch concavity provides proper soil flow and mixing action
46-52 Rockwell hardness – tough enough for field stones, not so hard it chips

Built for Real Farm Work

This blade fits standard disc harrows used for primary and secondary tillage across all types of farming operations. The 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. Whether you’re working corn stubble, preparing a clean seedbed, or incorporating fertilizer, this blade handles the job.

Made to Last

Osmundson has been making disc blades for farmers who demand quality that lasts. The smooth edge design excels at finishing work and seedbed preparation, creating the fine tilth you need without being too aggressive in lighter soils or minimal residue conditions.

Installation Notes

The combo square hole design means this blade works on both older and newer harrow axles – no need to worry about exact measurements. Check your axle wear while you’re changing blades, and remember that loose blades wobble and wear out faster. Most operators replace blades when they’ve lost 3-4 inches of diameter from their original size.