Byko-cut is a portable, multi-function coating test apparatus. It is used to examine the coating thickness, adhesion, and microscopic defects such as pores, scratches, and cracks. The device was designed for use in the laboratory and by application engineers. The design focuses on ergonomics and a wide range of functionality (revolving head with 3 cutters and a microscope) combined with a compact size (110 x 80 x 75 mm).