This replacement blade (part number 7556) is compatible with numerous Bush Hog models, including the 310, 315, 1310, 1315, 206, 306, 2615, and many others, also fits for Modern Rotary Cutter: Predator 15 (center), Raptor 15 (center), ensuring a perfect fit and reliable operation. 1 Made from heat-treated 5160 spring steel, these rotary cutter blades are built to withstand tough conditions, offering long-lasting durability, corrosion resistance, and superior cutting performance. 2 Designed with counterclockwise (CCW) lift, these blades ensure efficient and effective cutting, making them ideal for use in both heavy-duty grass cutting and tougher terrain. 3 Measuring 27-3/4” in length, 4″ in width, and 1/2″ in thickness, these blades feature a 1-1/2″ hole diameter and 2-1/2″ offset height, length from Center of Hole: 25-1/4, providing a perfect fit and reliable cutting performance.