To engrave pockets that are wider than the chamfer tool's diameter, follow these steps:
In this example, the engraving should be 3mm deep
OP 1: 2D pocket.
Set bottom height to the selected contour with an offset of -3mm.
under radial stock to leave, enter the radius of the V-bit at 3mm from the tip
to calculate this offset, make a cross-sectional drawing of the V-bit and measure the diameter at the correct distance (3mm) from the tip. Divide this length to become the radius.
OP 2: Engraving operation with V-bit
Set bottom height to the selected contour with an offset of -3mm.