This is the most unique and valuable working principle of the pointed nose knife (V-knife):
The tip of a knife is like a pen tip: its sharp tip can accurately cut into materials, outlining fine lines like a pen tip.
The angle of the cutting edge determines everything: when the cutting edge vertically cuts into the material, the depth of the cut directly determines the width of the line or groove cut. The deeper the cut, the wider the V-shaped groove.
Formula relationship: Slot width ≈ 2 × cutting depth × tan (blade angle/2)
This means that with just one tool, by controlling the cutting depth, it is possible to carve lines and patterns with natural taper from extremely fine to a certain width. This gives it an unparalleled advantage in carving text and graphics.