Diamond drill bits are pieces of cutting tools that contain diamonds, shape combinations of metals and make it possible to cut through extremely hard materials like concrete, cement, glass, ceramic and stone. In the past, contractors used diamond drill bits for various applications such as boring or coring into walls, drilling out holes and preparing electrical or plumbing access. Today, however, diamond drill bits are increasing in versatility and are being used in a growing variety of applications.
Diamond drill bit features vary in terms of type, size and application. A diamond drill bits tip is actually composed of an industrial grade diamond which is bond to a metal such as carbide. Typically, a diamond drill bit offered in the market falls into one of four categories - coated, flush cut, crown, and rotary. The coated bit has an edge composed of steel that is coated with a mixture of diamond crystals and metal bond. This type of bit is used when drilling into tile and marble but not recommended for granite.
Flush cut bits on the other hand, use the same type of edge like coated bits, with the difference being that bits of this type are able to flush a hole from one side only, making them useful for countersinking chips into softer surfaces such as tile and marble as well. They are also perfect to bore out holes because they can easily create flat edges and keep a stable shape throughout drilling.
Crown bits cut on the periphery and the edge is composed of diamonds mixed with metal bond. This type of diamond drill bits are designed to bore large holes at an angle, with both fixed and rotating bits in this type, so they can be used with both hand-held and mechanical drills.
Rotary bits are an ideal choice for hard materials such as granite and stone; they require high speed and accurate control. This type of bit works when you spin the bit with steady pressure and have to move it forward and backward at the same time.
In conclusion, diamond drill bits have multiple uses and come in many different shapes and sizes. Their versatility makes them a valuable part of any job involving cutting through tough materials, such as marble, stone, and glass.