What Is a Diamond Drill Bit and What Is It Used For?

When we need to work on particular surfaces, even very hard ones, it's right to consider the use of diamond-coated drill bits for the drill. These tools, in fact, are designed to offer certain structural characteristics that allow the operator to drill without particular risks. Both for the success of the hole and for the material being worked.

Let's be clear, in the toolbox of every professional in manual activities there should be a set of diamond-coated drill bits. But what exactly are we talking about? Here's what you need to know about these tools before buying them.

What Are Diamond-Coated Drill Bits?

Diamond-coated drill bits are drilling tools that can be mounted on manual or column drills. The fundamental characteristic: the surfaces are coated with diamond particles. This feature makes the drill bit very resistant and suitable for drilling extremely hard but also delicate materials. Such as glass, ceramics, marble, granite, and porcelain stoneware.

What Are Diamond-Coated Drill Bits Used For?

These tools are used for drilling materials that are hard but do not allow the use of percussion because at the same time they entail structural fragility that can cause breakage. Since diamond is the hardest natural material, it allows the drill bit to cut these surfaces with greater precision and stability compared to standard drills made of HSS steel or with TiN coating.

So, we can say that diamond-coated drill bits (in some cases cup mills) are fundamental for building work, for drilling stones that are very resistant like marble or granite. But which cannot be managed with the classic percussion imposed by the drill for extremely hard materials and with drills for drilling building materials like reinforced concrete or concrete.

What Can I Drill and What Holes Can We Make?

As expected, with diamond-coated drill bits you can work on a large number of stones and building materials. Specifically, we can work on very hard structures like marble or granite but also on porcelain stoneware and glazed ceramics, slate, and a large number of composite materials like polyester and fibers. With diamond-coated drill bits you can also drill glass.

What Should a Diamond-Coated Drill Bit Look Like?

To get a clear definition of a diamond-coated drill bit, just take a look at the Krino catalog where you find the best mills to work with hard but also delicate building materials. For example, the Keramaster – a reference point for those looking for an effective diamond-coated drill bit – features a high-melting metallic matrix brazed that retains medium-fine grain diamonds. But also double discharge for debris evacuation and vegetable wax coolant is perfect to ensure cuts without burrs.

This feature facilitates drilling work on hard-set tiles, where it is necessary to make a clean hole without chipping the tile. Just one detail: remember to cool when using it based on the product's requirements. In these products, the diamond crown wears out prematurely due to intensive use without proper management.