Applications of concrete core drilling(2)

3. Install the drill bit

Before installing the drill, make sure both the drill and core drill are not hot. What's more, be sure to wear protective gloves when handling, installing and removing core bits.

Next, remove any dirt or contamination that may have accumulated on the drill bit or shaft. Once you've done that, you can start threading the drill onto the drill shaft and tighten it securely with a drill wrench.

4. Operating the core drill

After completing the above steps, you are ready to operate the core drill. During this process, you need to do the following:

Check hole alignment by lowering the drill with the feed handle until the drill is about 1/2 inch from the concrete. When activating the core drill, it is important to ensure that the bit does not rest on the concrete.

Make sure to always check the manufacturer's recommendations for drilling speed.

Keep all body parts away from all moving parts of the core drill during operation.

Wet Drilling vs. Dry Drilling

Depending on the application, workers may have to use wet or dry core drilling.

wet core drilling

Wet core drilling offers greater efficiency in both processes. Wet drills generally drive the bit through the core faster than dry drills because the lubrication of the water helps loosen the surface of the material. Wet core drilling also leaves a cleaner, more stable hole surface because the water minimizes dust buildup during drilling.

Concrete, soft or hard brick, and reinforced concrete are the most suitable materials for wet core drilling. This procedure is suitable for the following applications:

Install Electrical Conduit

plumbing

laying pipes in masonry

Air conditioning and refrigeration work

Cut ceilings, walls and floors

Wet-running hollow bits generally have a longer life than dry-running bits because the water acts as a coolant to cool the heat generated during operation. The speed of the work itself also affects the durability of the drill.

Dry Core Drilling

Dry core drills look and operate much like wet drills, but they do not use lubricants. They will still remove core with the same ability as wet drilling. However, since no water is involved, there is inherently greater stress and pressure on the cutting blade, impacting bit speed and service life due to acceleration shocks.

Wet core bits are often the first choice for many applications. If the extra water is not required or could be detrimental to a particular job, then a dry core drill may be an acceptable choice. For example, if the job involves electrical wiring, a dry core drill may be a better choice.

One thing to remember about dry core bits is that lack of water means more dust. You will want to take precautions against dust to keep your operators and anyone nearby safe.

Advantages of Using Core Drilling

Using concrete drilling for construction has several advantages over other drilling methods, including:

Less Disturbance: Core drilling produces less noise and vibration than hammer drilling, making it ideal for locations such as hospitals, offices and schools.

Reduced mess and dust levels: Less mess is created during core drilling, which helps protect the operator and others by reducing the chance of respiratory problems.

Increased safety of surrounding structures: Core drilling enables you to maintain structural integrity and reduce overall risk throughout the process.

Efficient, precise work: The core drilling process produces cleaner, more accurate holes quickly and efficiently.

Cost-effective: Concrete core drilling requires fewer workers, reducing labor costs. Diamond concrete core drills are also very durable, which means you can extend their lifespan.