Match weight per blade to your power and conditions. A 650 Disk offers from 167 to 207 pounds per blade. Combination scrapers are standard equipment. Or, set the scrapers in the self-adjusting position and peel away sticky soil. Either way, these scrapers direct soil and residue backward, rather than up toward the gangs where it can interfere with disking action.
Wider blades are especially valuable for preventing soil buildup on the rear-gang blades.
You can also add a knock out scraper bar. You'll appreciate this option if you frequently disk in moist, sticky soil. The wide, top-mounted paddle removes buildup from around spools as well as blades. Extra-long triple lips on the inner race team with a wide seal between the outer race and flange. Bearings are greasable for long life.