SKU: SMA-114-30560511P 30 Inch Smooth Disc Blade for Harrows with 1-1/2 Sq x 1-5/8 Rd Axle

When your disc harrow starts pushing residue around instead of cutting through it cleanly, it's time to get back to doing the job right. A worn blade just pushes residue around instead of cutting through it, and that's no way to prepare a proper seedbed. This 30-inch smooth disc blade brings back that clean cutting action you need to size residue properly and create the even soil conditions your crops deserve.

What You're Getting

• Large 30-inch diameter provides excellent soil penetration and coverage for efficient field operations
• 8mm thickness (5/16 inch) offers the right balance of durability and flexibility for varied soil conditions
• Smooth edge design creates a clean cut through residue while providing excellent soil mixing and leveling
• Combo axle hole accommodates both 1-1/2 inch square and 1-5/8 inch round axles for versatile equipment compatibility
• Quality Boron 15B26 steel construction with 46-52 Rockwell hardness provides long-lasting performance

Built for Real Farm Work

This blade fits disc harrows using either 1-1/2 inch square or 1-5/8 inch round axles, giving you flexibility across different equipment brands and models. Your disc harrow needs to cut, size, and mix material into the soil profile, whether you're working corn stalks in the fall, preparing ground for spring planting, or maintaining summer fallow. The 30-inch size gives you good soil throw and penetration for medium to heavy-duty tillage work.

Made to Last

Boron 15B26 steel maintains 46-52 Rockwell hardness - hard enough to hold a sharp edge through tough conditions but not so brittle it'll crack when you hit that inevitable rock or root. The 8mm thickness provides the strength needed for demanding field conditions while maintaining the flexibility to work properly in varying soil types.

Installation Notes

Never mix worn and new blades on the same gang - the diameter difference creates uneven cutting that leaves streaks in your field. Check for elongated mounting holes from wear - 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.