Professionals handling technical projects use drills at some point, regardless of their industry. They usually use the diamond core drill bit to remove cylindrical sections of materials during the construction and installation of pipes or electrical cables. The drill can cut through concrete and metals, which makes it a unique tool in many industries.
However, drill users must choose between wet and dry core drilling options. Therefore, anybody using a drill should learn the difference between the two drilling methods to ensure they use the right drill bit for the task at hand. This article will highlight the main considerations when choosing between wet and dry core drilling.
The Type of Core Drill Bit
The first factor to remember when choosing a drilling method is the drill bit required. As expected, the wet core drill bit uses water to reduce friction and heat when core drilling hard surfaces such as concrete, granite, masonry, metal, and reinforced concrete.
The dry core drill bits do not require water but can only work on soft stones or bricks with medium hardness. However, contractors and technicians can also use dry core drill bits on hard materials if water could pose a significant risk. Therefore, dry core drilling is ideal for working around electrical wires or where water could do more harm than good.
Efficiency
When choosing a core drilling method, a technician should assess the efficiency level required. The wet drill bit uses water, which generates less dust and creates a refined and clean hole. Therefore, this drilling method is used when the contractor wants to make a smooth and stable hole.
Unlike the dry core drill bit, the wet drill bit lasts long because it is not exposed to high friction, which would increase wear. However, it cannot be used near electrical lines since water increases safety risks. Therefore, dry core drilling is more useful in confined spaces and hazardous locations, where using the wet drilling method could cause safety concerns.
Unfortunately, dry core drilling generates dust, which affects the contractor’s vision when drilling. Additionally, the drill bit wears faster due to exposure to friction and heat.
Environment or Material That Needs Drilling
As explained, dry core drilling works best for soft bricks or stones, while wet core drilling is used on harder surfaces. Therefore, the material that needs drilling and the drilling environment can help the contractor choose the best core drilling method.
Although wet core drilling is preferred in some situations, it cannot work in every situation because water could mess up the process or appliances in the environment. Therefore, the contractor should evaluate the environment to select a drilling method that does not create more problems.
Accessories and Maintenance Practices
Wet core drilling requires a brass ring to separate the drill engine and the core bit. This accessory is not necessary in the dry core drill. Similarly, the dry core drill might need a pilot drill bit, which is not required in wet drilling, to operate efficiently.
Wet core drill bits last longer and require less maintenance than dry drill bits. Therefore, contractors concerned about maintenance costs and best practices might prefer a wet core drill. During wet drilling, the water from the drill reduces wear and extends the life of the bit.
However, dry core drill bits have shorter lifespans because they bear the friction and the debris that swirls around during the drilling project. So, the contractor will spend more on maintenance and has to take good care of the core drill bit to extend its useful life.
These considerations can help a technician choose the right core drill option for a project. The correct drilling method can help save resources and create a hole that serves the intended purpose. Therefore, drilling contractors should pay attention to these factors to choose the right drilling option.