Sharpening file kit

Fine diamond files kit with 3 different grits:

Medium 400 (violet)

Fine 600 (red)

Super fine 1200 (blue)

Use them to sharpen your hair punching needles.
When you need to prepare new needles, it is very recommendable to use this type of files. After cutting the tip, sand  it with this files to make the hair punching process smoother and preserve the surface you are working on.