SET OF NINE OREGON GATOR BLADES - 392302 OREGON Blades 392302 are 28.5", .755 Round center hole. Made in USA. Enhanced with carbide. Tungsten carbide is "fused" into the blade - creating an ultra-hard layer at the cutting edge and increasing the time between sharpening. The aggressive blade angle increases air flow to push debris up-and-out for superior bagging or side discharge. Replacement blade for Befco: 000-6690. This is an Aftermarket part. Thanks for looking!