Center Hole: Will fit 95% of mowers with Fitz-All adapter kit
The OREGON Fitz-All center hole fits 95% of all lawnmowers made. Each blade requires an adapter unless being used to replace an MTD blade with the “bow tie” (rectangular) center hole such as 742-0740, 742-0640, 742-0741, 742-0642, 742-0742, etc.
