In the last article, we shared with you what is the DTH drill bit. I don’t know whether you will have a question, as rock drilling tools, what is the difference between rock drill bits and DTH drill bits? Is it just a different classification that one belongs to the top hammer rock drilling tools, and the other belongs to the DTH drilling tools? Especially for people who have just entered the industry, confusion between rock drill bits and DTH drill bit often occurs. Because of this, we will tell the difference between rock drill bits and DTH drill bits today.

Before understanding the difference between rock drill bits and DTH drill bits, let’s first understand the difference between rock drilling tools and DTH drilling tools. Although in the field of rock drilling and blasting, both of them are rock drilling tools. It is called rock drilling tools used by rock drill and drilling tools for drilling large apertures used by DTH drilling rigs and roller cone drilling rigs. Rock drilling bits belong to the former, and DTH drill bits belong to the latter.

And then, let’s understand the meaning of rock drill bits and DTH drill bits.

Rock drill bit: It contains two parts: skirt body and carbide button. The drill bit skirt body and the drill rod are connected by threads and driven by the rock drill, and the drill bit carbide button drills and breaks the rock.

DTH drill bit: It connects the impactor with the spline of the drill bit to guide and transmit the rotation for the impact. The drill bit and the DTH hammer dive into the hole to break the rock.

From the above content, we can see that the rock drilling machines used by them are different.

The rock drill bit matches the rock drill used. A rock drill is a tool used to extract the stone. It drills blast holes in rock formations so that explosives can be put in to blast the rock, to complete the quarrying or other stonework.

DTH drill bits match the DTH hammers used. The DTH hammer is an integral part of the DTH drilling rig and belongs to the working device of the DTH drilling rig.

We can also distinguish them by the way they are classified.

Rock drilling bit: according to the classification of the carbide button, it includes a conical button, parabolic button, and ogive button.

1. The conical button has high drilling efficiency and is suitable for medium-hard rock from f8 to f14, such as limestone, gravel, marble, pyrite, etc.

2. The parabolic button feeding speed is fast, which can not only ensure rock drilling efficiency but also have a better service life. It is very suitable for medium hard rock and moderately corrosive rock formations.

3. The ogive button has a fast button feed speed and excellent rock drilling efficiency. They are suitable for soft rock below f8, such as shale, clay rock, sandstone, and rock salt.

DTH drill bit: according to the structure, it includes a split drill bit and an integral drill bit.

1. Split drill: It has a head and a shank. If the drill bit is damaged, they can be replaced separately, to save steel, but the drill bit has low strength.

2. Integral drill bit: All in one. Compared with the split drill bit, it has high strength and can improve the energy transfer efficiency. The spline connection between the drill bit and the impactor is adopted to deliver large torque, uniform force, less wear, long life, and reliable work. However, it comes with high operating costs. According to the shape classification, rock drill bits and DTH drill bits both include the flat face, drop center, and semi-dome, but their scope of application is different.

I believe that through the above content, you can know the difference between rock drill bits and DTH drill bits. Whether it is a rock drill bit or a DTH drill bit, to achieve the purpose of efficient and fast rock drilling, in addition to choosing high-quality products, it is necessary to choose the right rock drilling tools according to different drilling methods and rock types. If you don’t know how to choose, the supplier of the product is very important. Choosing professional and formal suppliers can not only provide enterprises with high-quality products but also provide professional advice on how to choose rock drilling tools. If you have this need at this time, you can send an email to kelleg@kellegco.com or leave us a message, and Kelleg will provide you with a professional and prompt reply.