- Used on concave, convex and flat surfaces
- Rounded on one side, flat on opposite
- Flat sides of all half-round files are double cut
- Backs of all 4 in and 6 in files are single-cut
- Backs of all half-round second-cut files are longer than 6 in are double-cut
![Crescent Half-Round Files, 12 in, Second Cut, 1/EA #05125N Crescent Half-Round Files, 12 in, Second Cut, 1/EA #05125N](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/265497/463450/183-05026N__03678.1678731429.jpg?c=2)