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V-bit Engraving Width Calculator

Calculate V-bit engraving line width from included angle, cutting depth, and tip flat, or solve the depth needed for a target engraved width.

Engraving width

0.035 in

Cut depth

0.030 in

Side angle

30 degrees

Width per depth

1.155:1

Formula

Engraving width
Width = 2 x depth x tan(included angle / 2) + tip flat
Required depth
Depth = (target width - tip flat) / (2 x tan(included angle / 2))

Setup notes

  • Use measured included angle and measured tip flat when precision matters.
  • A deeper cut gets wider quickly with 60 degree and 90 degree V-bits.