How to Choose the Best Rock Drill Bit

When it comes to drilling holes in rock, choosing the right drill bit can help you get twice the result with half the effort. There are many types of drill bits available on the market. But each drill bit has its own specific requirements, such as different rocks or drilling conditions. Below, we at Superdrill will help you choose the most suitable drill bit based on different types of rock drill bits.

Types of Rock Drill Bits

Tapered Drill Bits

• Shape: Conical

• Use: Hard rock formations

• Features: The tapered shape allows for deeper penetration into the rock. Suitable for use with hammer drills, and can be used for both surface and underground drilling.

• Sizes: Available in various sizes.

  

  Tapered chisel bits

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Threaded Drill Bits

• Shape: Threaded to fit into a rock drill machine's chuck

• Use: Hard rock formations and deep hole drilling

• Features: Ideal for both surface and underground drilling.

  

  R25 Thread Button bits

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Cross-Type Drill Bits

• Shape: Chisel-shaped tip

• Material: Tungsten carbide

• Use: Hard and abrasive rock formations

• Features: Highly resistant to wear and tear, suitable for use with hammer drills, ideal for deep hole drilling.

  

  Tapered cross bit

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Button-Type Drill Bits

• Shape: Carbide buttons on the tip

• Use: Hard rock formations

• Features: Provides high impact force, suitable for shallow to medium-depth holes, used with hammer drills.

  

  Reaming button bits

  

  Retrac Threaded Button Bit

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Choosing the Best Rock Drill Bit

When choosing the best rock drill bit, consider the following factors:

Type of Rock Formation

Different bits are designed for specific types of rock. For example, cross-type and button-type bits are better for hard, abrasive rocks.

Drilling Depth

Tapered and threaded bits are suitable for deeper holes, while button-type bits are better for shallow to medium-depth drilling.

Hole Diameter

The diameter of the hole you need to drill will dictate the size of the drill bit. Ensure you select a bit that matches your required hole diameter.

Quality of the Drill Bit

High-quality materials and design are essential for durability and performance. Bits made from tungsten carbide or other high-quality materials will last longer and perform better.

Tips for Choosing a Rock Drill Bit

• Match the Bit to Your Drill Machine: Ensure the bit is compatible with your drilling equipment, whether it's a hammer drill or a rock drill machine.

• Assess the Rock Type: Know the type of rock you'll be drilling to choose the bit that is specifically designed for it.