diamond indenter

A diamond indenter is a tiny, precisely shaped tool made from, or coated with, diamond. It's used in hardness testing to press into a material's surface. Because diamond is extremely hard, the indenter can create a measurable impression on even very tough materials like metals and ceramics. By examining the size or depth of the indentation, scientists can determine how hard the material is. Diamond indenters are valued for their durability and accuracy, making them essential in quality control and material research.