Tips for Drilling Through Concrete and Rebar

Tips for Drilling Through Concrete and Rebar

Tips for Drilling Through Concrete and Rebar

Tips for Drilling Through Concrete and Rebar

Drilling through concrete and rebar is far more challenging than punching a hole in a thin sheet of material. Working safely and effectively in these conditions often requires different tools, techniques, and approaches from other situations. To ensure you don’t waste your time or damage your equipment, follow these tips to help you drill through concrete and rebar like a pro.

Prep Yourself and the Surface

The hazards of drilling through concrete include hearing loss, hand vibration, and silica dust. Wear personal protective equipment such as safety glasses, ear protection, and gloves to minimize those hazards.

Clean the surface you’re going to drill through, removing any debris or dust that might interfere with your cutting. Mark the area you want to drill to ensure that the hole you bore into the work surface is in the correct spot. Use a center punch on concrete to create an indentation to guide the drill bit.

Select the Right Bit

When drilling through concrete, use a masonry bit designed to bore through rough and abrasive material. Large flutes along the drill bit’s length remove dust and waste faster and reduce vibrations.

A tungsten carbide masonry bit will give you excellent results when cutting through rebar and concrete. You can also start drilling with your tungsten carbide bit, then switch to a diamond core bit once you reach the rebar.

Adjust Your Speed

Another essential tip for drilling through concrete and rebar is to start at a low speed and gradually increase the pace as the bit moves deeper into the material. Doing this prevents the drill from overheating and will help make the hole’s sides smooth.

Drilling through rebar can weaken the concrete’s structure, so always know the details of your project before you start drilling. Reduce the speed and pressure when you feel or hear that you’ve hit the rebar. Once you’ve worked through the rebar, increase the rotation speed to continue making the hole.

Keep the Bit Cool

Unlike boring through softer materials, drilling through concrete and rebar generates a lot of heat. If your drill bit gets too hot, it will become more prone to breakage and wear out quickly.

Take frequent breaks to allow the drill bit to cool down. Consider using a water-cooling system to keep your drill bit cool and lubricated and to minimize masonry dust.

Cut through dense, hard materials with high-quality drill bits for rebar in concrete. Cutting tools from Drill Bit Warehouse improve efficiency—shop with us today for durable equipment.

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