Safety knife replacement blade features rounded corners to help reduce product damage and injuries in the workplace. Made of high-quality Japanese grade carbon tool steel and designed for unparalleled sharpness and superior edge retention. Each blade features 2 cutting edges. Fits Model No. 9048 (SKU 303150), Model No. 1060595 (SKU 303167), and Model No. 1086095 (SKU 319569).