Fractional drill bit holder with a slide-on lid
Sizes: 3/8, 5/16, ¼, 15/64, 7/32, 13/64, 3/16, 11/64, 5/32, 9/64, 1/8, 7/64, 3/32, 5/64, and 1/16
V2 Fixed gap issue that was appearing with V1
The author hasn't provided the model origin yet.