The Oregon 97109 lawn mower blade is a high-quality replacement part designed for 508 mm (20 inch) cut Murray walk-behind mowers. This durable blade features a 508 mm (20 inch) length, 57.15 mm (2.25 inch) width, and a thickness of 3.40 mm (0.134 inch). It has a 15.875 mm (5/8 inch) center hole and two 9.525 mm (3/8 inch) outer holes with a 63.5 mm (2.5 inch) center-to-center spacing. Weighing approximately 0.816 kg (1.8 lbs), this blade is engineered for optimal cutting performance and longevity. It directly replaces Murray OEM part numbers 092415E701MA, 92415, 92415E701MA, 92415HT, 92415MA, and 92415MAX.