Replacement Blade for Veritas Miniature Marking Gauges

It's the replacement blade for Veritas miniature marking gauges, a direct fit for that gauge line.

Once honing no longer restores a clean, crisp scoring line, whether from a chip, excess wear or a snapped tip, a replacement blade is the more practical fix than trying to reshape what's left of the original.

Not necessarily; most replacement gauge blades arrive with a usable edge, though a light honing on a fine stone before first use can tighten up the scored line if you want maximum precision.