Cutex Brand 2-1/4" Hexagon Blade For Eastman Chickadee Electric Rotary Shears 2-1/4" Diameter Hexagon Blade for Eastman Chickadee D2 Rotary Cutters High quality round knife blade manufactured from Hi-Grade, High Speed Steel For Eastman Chickadee Rotary Hand Cutters Blade size : 2-1/4"