Top hammer drilling is a popular method used in the mining and construction industries for drilling holes in hard rock surfaces. The success of this method depends heavily on selecting the right drill bit for the job. Top hammer threaded drill bits are an essential component of this drilling technique and are available in various sizes and designs.

In this article, we'll guide you through the factors to consider when selecting the right top hammer threaded drill bit. We'll explore the various designs available, and discuss the factors that affect their performance.

Design:

Top hammer threaded drill bits are available in different designs, including button bits, cross bits, and chisel bits. Each design is suited to a particular drilling application.

Button bits are the most common design and are ideal for drilling through hard and abrasive rock surfaces. Cross bits are suited for drilling through soft and medium-hard rock surfaces. Chisel bits, on the other hand, are used for drilling through hard rock surfaces and are ideal for drilling straight holes.

R32 ROCK DRILLL BUTTON BIT

Size:

The size of the top hammer threaded drill bit is an essential consideration when choosing the right bit for your project. The size of the bit should be matched to the size of the hole you need to drill. Using the wrong size bit can result in an inefficient drilling process and may damage the drill or the rock surface.

T51-89MM T51-152MM BUTTON DRILL BIT

Face Design:

The face design of the top hammer threaded drill bit is another crucial factor to consider. The face design refers to the shape and placement of the buttons or carbide inserts on the bit. Different face designs are suitable for different rock formations.

For instance, a conical button face design is suitable for hard and abrasive rock formations, while a flat button face design is ideal for soft rock formations. The spacing between the buttons or carbide inserts also affects the performance of the drill bit.

T45-76mm with button size 13mm high wear resistance

Shank Design:

The shank design of the top hammer threaded drill bit is also essential. The shank connects the bit to the drill string, and its design can affect the performance of the drilling process. Different shank designs are available, including the standard round shank and the hexagonal shank. The shank design should be matched to the drill rig being used for the project.

Choosing the right top hammer threaded drill bit is crucial for the success of your drilling project. By considering the factors mentioned above, including the design, size, face design, and shank design, you can select the best drill bit for your project. With the right drill bit, you can achieve efficient drilling, save time and money, and ensure the safety of your project.