Simple Testing Tool for Scratch Hardness of Materials A scratch hardness tester is used to check how much a surface can resist scratches. It tells if a product's coating or outer layer can stay smooth and strong. The scratch hardness test is done by pressing a tool on the surface and moving it to see if it gets scratched. This helps makers improve the product’s strength. The tester is used in industries like plastic, paint, metal, and coatings. Presto makes the best scratch hardness testers that are easy to use and give correct results. These tools are helpful in labs and factories to make products stronger and better. Read more -......See More