The CORROCUTTER 639 scratching tool is used to make defined and reproducible scratches on coatings of test sheets for corrosion tests. The most frequently used scratching tools with functionality according to Van Laar, Clemen and Sikkens principles are available for this. The CORROCUTTER 639 avoids the heavy strain on the user’s fingers and wrists which can normally occur when scratching many test plates with scratching pins. The CORROCUTTER 639 scratching tool is a table-top unit. The slide carriage is equipped with a linear guide (slide bearing) and can be moved manually.