THE LOG / METALWORK / 2 MIN READ
A Clean Edge, by Hand
A file, a vise, and a little patience. Take the sharpness off cut steel without taking away the shape.
SMPLMN / Practical notes
Hold the work, not the risk
Freshly cut steel can carry a thin, sharp burr. Secure the piece in a vise before touching the edge with a tool. Wear eye protection and use a file with a properly fitted handle; the bare tang is not a handle. Brush loose chips away rather than wiping them with your hand. The setup should keep both the metal and your stance steady.
Let the teeth do the work
Choose a flat file for a straight edge and a round or half-round file for a curve. Start with light, controlled forward strokes. Reduce pressure on the return. Follow the existing shape instead of rocking the file over it. Remove only enough material to clear the burr, then stop and check visually under good light. A small edge break is usually better than an accidental bevel.
Keep the file cutting
Metal caught between the teeth can leave scratches. Clear it with a file card as you work, following the tool maker’s directions. Keep files separated in storage so their teeth do not knock against each other. Before putting the piece back into service, inspect the whole perimeter, not just the edge you noticed first. A clean finish is the sum of small checks.