A portable hardness tester is a handy device used to measure the hardness of materials like metals, plastics, and rubbers on the go. Unlike bulky lab equipment, it’s lightweight and easy to carry, making it perfect for field inspections or quick checks on the production floor. It works by applying a fixed force to the material and measuring the resistance—usually through rebound, ultr... https://yorktestingsolutions.com/portable-hardness-tester/