Rock drill bit suppliers number close to 15,000 globally. Among the most popular types of rock drilling bits are those dedicated to drilling into and through hard rock. Hard rock is rock that ranks greater than 6 on the Mohs scale of hardness. This type of rock includes
- Silicified rock
In order to slice successfully through hard rock, it is imperative; drilling companies select the proper bit.
The Right Bit
Selecting what bit is capable of slicing through hard rock can be difficult, but it is important to get it right if the project is to produce good results. Many factors and qualities must be considered. Among them are:
- The specific type of hard rock – abrasiveness and hardness and any variability
- Specific type of bits available e.g. button
- Configuration of the bit face e.g. turbo
- Specificity of the bit, itself. Choose one developed with hard rock in mind
- Drilling parameters. These consists of
- Feed pressure
- Rotation speed
- Water flow
- Need to improve viscosity by adding a non-abrasive drilling fluid additive
In general, the environment, working conditions, work demands and specific type of rock will influence the choice of hard rock drilling bits from the many currently available on the market. The popular choice is a free cutting drill bit with a softer matrix than for other types of rock drilling. As a result, the core bit tends to have a higher number and be one developed explicitly for hard rock drilling.
Hard Rock Drilling Bits
It makes no difference whether you are a novice or an expert; the choice of the one best built for the dig is one of the most crucial decisions among what can be a lengthy list. When it comes to hard rock drilling bits, always consult with professionals. They know how to choose a bit able to address the conditions and other factors affecting the drilling process.
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