Figure 4. Examples of the pitting, crushing and fracture wear types.

In each row, the wear intensity is shown from 1 (left) to 3 (right) on the 3D scan, with the worn portion of the tool highlighted by the dashed lines. The solitary stone at the left of the figure provides an undamaged comparison. A: Pitting wear on tools Skp01, Del01 and Nik02. B: Crushing wear on tools Gol01, Kiy02 and Gol04. C: Fracture wear on tools RF001, Sid01 and Med01. The scans are not at the same scale, and are shown at a similar size to demonstrate the relative extent of the damage. Metric data for each tool are provided in Table 1.