Description

When you’re dealing with heavy residue and tough field conditions, sometimes you need a blade with extra grip on that axle to keep everything spinning true. This 20-inch crimp center disc blade is built to handle the toughest tillage jobs while staying properly positioned on your disc harrow. The 6-inch crimp center design grips the axle firmly, preventing the blade from slipping even when you’re pushing through thick corn stalks or matted cover crops.

What You’re Getting

20-inch diameter with smooth cutting edge for effective residue management
3/16-inch thickness provides durability without excessive weight
Crimp center design prevents blade slippage on 1-1/2 inch round axles
Quality Boron 15B26 steel construction with 46-52 Rockwell hardness
Single punch mounting hole for secure, straightforward installation

Built for Tough Field Work

This blade is designed for disc harrows that use 1-1/2 inch round axles, commonly found on both older and newer models across many brands. Whether you’re working corn stubble, incorporating cover crops, or preparing seedbeds, the smooth edge cuts cleanly while the proper concavity moves soil effectively. The 20-inch diameter gives you good penetration and residue handling in most tillage applications.

Made to Last

Osmundson doesn’t mess around with blade materials. 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 3/16-inch thickness strikes the right balance between durability and reasonable replacement cost.

Installation Notes

The crimp center design means this blade locks onto round axles differently than standard blades – you’ll get a much more secure fit that won’t work loose under heavy loads. When replacing blades, never mix worn and new on the same gang – the diameter difference creates uneven cutting that leaves mohawk strips. Consider replacing entire gangs at once for the most consistent tillage performance.