In the MODERNER, the spacing of 3mm×5 single-edged cutter heads is 3mm, and the number of teeth is 6, which is suitable for test pieces with a coating film thickness of 60-150μm.
QFH paint film scratcher has multi-blade cutting knives (1mm, 2mm, 3mm) with three specifications of spacing, which can be selected according to different test conditions. The multi-blade cutting knife with 1mm spacing is suitable for test pieces with coating film thickness <60μm, the cutting knife with 2mm spacing is suitable for test pieces with coating film thickness 60-100μm, and the cutting knife with 3mm spacing is suitable for coating film thickness 60-150μm test piece. The test piece should be made of glass, tinplate, aluminum, etc. as the substrate.