Set Contents: EA521PH-51 x 1, EA521PH-52 x 1.
Total length: 9.3 inches (235 mm)
Blade Length: 4.7 inches (120 mm)
Rough: Rough, fine and single coarse/single medium.
File Shape: Flat
Material: SK material
The file is different on the front and back, so you can do it with one piece from rough grinding to finish.