SKU: SMA-114-180706P Smooth Disc Blade for Disc Harrows with 1-1/2 Inch Round Axle

When your disc harrow blades start leaving uncut strips or you notice they're not penetrating like they used to, it's time for replacements. Your disc harrow needs to do more than just roll over crop residue - it needs to cut, size, and mix that material into the soil profile. This 18-inch smooth blade brings back that consistent cutting action and proper soil mixing you need for effective seedbed prep.

What You're Getting

• Made from tough Boron 15B26 steel with 46-52 Rockwell hardness that holds its edge season after season
• 7-gauge thickness provides the durability to handle rocks and tough field conditions
• Smooth edge gives you a clean, uniform cut for finishing passes and lighter tillage work
• Single punch mounting hole fits 1-1/2 inch round axles - direct replacement, no modifications needed
• Standard 1.63-inch concavity throws soil properly for good residue incorporation

Built for Real Farm Work

This blade fits disc harrows with 1-1/2 inch round axles, commonly found on tandem disc harrows, offset discs, and finishing disc harrows used for secondary tillage operations. Whether you're working down corn stalks, preparing wheat stubble for the next crop, or smoothing out rough tillage work, this smooth blade gives you the consistent finish farmers count on.

Made to Last

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 7-gauge steel construction stands up to the punishment of working through rocky ground and tough crop residue.

Good to Know

When replacing blades, never mix worn and new on the same gang - the diameter difference creates uneven cutting that leaves mohawk strips. The single punch mounting means checking for elongated holes from wear - loose blades wobble and wear prematurely. It's smart to order a full gang set so you've got them when the old ones are too worn to do their job properly.