Diamond core drills are widely used across multiple fields.

A diamond core drill is a drilling tool that uses diamonds as its cutting material. Thanks to its exceptional hardness and wear resistance, it has found widespread applications across various industries. Here's a detailed introduction:
Structure and Principle
Structure: Diamond core drills typically consist of diamond particles and a drill body. The diamond particles serve as the cutting elements, precisely arranged and securely fixed onto the drill surface; meanwhile, the drill body provides structural support for the diamond particles, with common materials including cemented carbide and steel.
Principle: Utilizing the high hardness of diamond, diamond particles come into contact with the surface of the material being processed during drilling. Through cutting, grinding, and other mechanisms, the material is removed, thereby creating the desired hole.
Features
High hardness and wear resistance: Diamond is the hardest naturally occurring substance, making diamond core drills perfectly suited for effortlessly cutting hard and brittle materials such as glass, ceramics, stone, and concrete—while also boasting an exceptionally long service life, enabling continuous multi-hole drilling operations.
High drilling precision: These tools can produce highly accurate holes with smooth bore walls and exact dimensions. For instance, Obirei Corporation's diamond micro-drills can create ultra-long holes as small as 0.1 mm in diameter, with aspect ratios exceeding 60—meaning the length-to-width ratio is greater than 60—and the inner surfaces of these holes can even achieve a polished finish by carefully selecting the appropriate machining conditions.
High drilling efficiency: In hard geological formations, diamond core drills outperform conventional drill bits, significantly boosting work productivity. This makes them particularly well-suited for drilling operations in fields such as oil and natural gas exploration, as well as construction projects.