JOOLTOOL Grobet Swiss-Made Set of Three (3) File Shapes, all have an extra-long needle in a 2/0 cut.

These files will make your life easy if you like to carve into your metal with precision:

The triangle allows for the starting point and creates a line or a slight V, the lentil shape allows you to round two corners at the same time and the barrette allows you to work one direction without impeding the space next to it. 

Barrette Needle File

Overall Length: 4" (100 mm)

Width: 5/32" (3.7 mm)

Thickness: 1/16" (1.4 mm)

Cut 2

Three-Square Needle File

Overall Length: 4" (100 mm)

Width: 7/64" (2.8 mm)

Cut 2

Half Round Needle File

Overall Length: 5-1/2" (140 mm)

Width: 11/64" (4.5 mm)

Thickness: 5/64" (2.1 mm)

Cut 2