SKU: SMA-114-201403P Smooth Disc Blade for Disc Harrows and Tillage Equipment

When your smooth disc blades are worn down to where they're more like rolling pins than cutting tools, it's time to get some fresh steel that'll actually slice through soil and residue instead of just pushing it around. This 20-inch smooth blade brings back that clean cutting action your harrow needs to properly prepare a good seedbed without leaving clods and chunks behind.

What You're Getting

• Heavy-duty 1/4-inch thick Boron 15B26 steel that holds its edge through hundreds of acres
• Standard 2-inch concavity creates the perfect roll and mixing action for tillage work
• Hardened to 46-52 Rockwell for the right balance of edge retention and toughness
• Single punch mounting hole design for secure attachment to your harrow gang
• Quality construction that matches original equipment specifications

Built for Real Farm Work

This blade fits disc harrows and tillage equipment using 1-1/8 inch square axles. These are the workhorses found on smaller to mid-sized harrows used for seedbed prep, stubble management, and general tillage work. Whether you're finishing plowed ground, working down corn stalks, or preparing summer fallow, this blade size handles the everyday tillage jobs that keep your operation running.

Made to Last

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. The 1/4-inch thickness gives you plenty of material to work with as the blade wears, and the standard concavity creates consistent soil flow across the entire cutting edge.

Installation Notes

Never mix worn and new blades on the same gang - the diameter difference creates uneven cutting that leaves mohawk strips. Check your blade spacing while the gang is apart, and inspect the mounting holes for wear since loose blades wobble and wear prematurely. A quick tip: coat blade edges with used oil when storing to prevent rust pitting that ruins cutting ability.