Cutting tool Single bladed knife or multi-blade cutting tool with 6 blades spaced 1 or 2 mm apart Spacing of cuts 0 - 60 microns: 1 mm spacing, hard substrates 0 - 60 microns: 2 mm spacing, soft substrates 60 - 120 microns: 3 mm spacing, hard/soft substrates 121 - 250 microns: 3 mm spacing, hard/soft substrates Procedure Make 6 parallel cuts with defined space in the coating. Repeat operation, crossing original cuts at 90o so that a grid pattern is formed Brush with soft brush. Apply adhesive tape and pull off. Classify results in accordance with table.