Miller-Colburn File

double-ended, down-cutting teeth, medium & large ends, octagonal handle, 7-1/4″ (18.4 cm)?Miller-Colburn File can be used to soften jagged edges or rough surfaces on bone or other hard surfaces. This file features a slim, octagonal body shaft that doubles as a handle from which two different sizes blade extend on either side. Both ends features down-cutting teeth that allow it to grab hold and uniformly file away at a surface such as the skull or vertebral fragment to protect surrounding tissue from damage in craniotomies or spinal surgeries.