Half-Round File
A file flat on one side and rounded on the other, combining a flat file with a round file in one tool.
What is it?
The half-round file has one flat face and one convex rounded face, so it works both flat surfaces and concave or interior curves. It is among the most versatile files for mixed work.
What is it used for?
- Smoothing flat surfaces with the flat face
- Working concave curves with the rounded face
- Interior and fillet shaping
Common sizes
- Lengths from 4 to 12 inches
- Various cut grades
- Single flat face plus convex back
How to choose
Choose the flat face for flat work and the rounded face for interior curves. Pick the cut grade by how much material you need to remove.
Anatomy
Understanding the parts of a half-round file helps you use, maintain, and buy it with confidence.
- Flat face: the level surface for flat work
- Convex back: the rounded surface for concave curves
- Point: the leading taper
- Tang: the handle mount
Materials & construction
Hardened high-carbon steel with teeth cut at a controlled angle; case-hardened faces keep the teeth sharp while the body stays tough.
Safety & maintenance
- Always fit a handle
- Push forward to cut, lift on the return
- Clean the teeth with a file card
- Wear safety glasses
Also known as
half round file, band file