The kerf width is defined as which of the following?

• A. The torch standoff
• B. The thickness of the material
• C. The width of material removed by the cut
• D. The regulator

Answer: (C)

Kerf width is the width of material removed by the cut—the slot created in the workpiece as the cut is made. It describes how wide the cut is, not how far the torch sits from the work, nor the thickness of the material, nor the gas regulator. The slot left behind by the cutting process defines the kerf, so the correct description is the width of material removed by the cut.