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How to Break Concrete With a Drill

Written By

Carmen

/

Breaking concrete may seem like a daunting task, but with the right approach and some preparation, it can be managed safely and efficiently. Whether you’re tackling a driveway, patio, or a small patch of concrete in your basement, it’s important to follow proper procedures to avoid injury and damage to surrounding areas.

Before you start, make sure you understand the entire process and have all the necessary tools and safety gear. Planning ahead not only makes the work easier but also ensures you don’t run into any unexpected obstacles. In this guide, we’ll walk you through the tools you’ll need, essential tips, and a step-by-step process on how to break concrete with a drill for using a drill to break concrete.

How to Break Concrete With a Drill

Tools and Materials You’ll Need

  • Heavy-duty Drill (Preferably a Rotary Hammer or Hammer Drill)
  • Masonry Drill Bits (Carbide-tipped)
  • Sledgehammer (Optional, for Larger Pieces)
  • Safety Goggles and Work Gloves
  • Dust Mask or Respirator
  • Hearing Protection
  • Steel-toed Boots
  • Chisels, Crowbars, or Pry Bars
  • Water Spray Bottle (to Minimize Dust)
  • Measuring Tape and Chalk

8 Simple Step-By-Step Guidelines on How to Break Concrete with a Drill

Step 1: Assess and Mark the Work Area

Start by evaluating the thickness and size of the concrete you plan to break. Mark out the area clearly with chalk or tape to help you stay focused and work efficiently. Check for any utility lines under the slab before drilling to avoid dangerous accidents.

Concrete You 
Plan to Break

Once the area is marked, move any obstacles or debris from your workspace. Good preparation saves time and reduces the chance of mishaps later. Make sure you have ample lighting and plenty of room to maneuver safely.

Step 2: Gather Safety Equipment

Before starting the actual work, put on your safety gear. This includes safety goggles to protect your eyes, gloves for your hands, steel-toed boots for foot protection, and a dust mask to prevent inhalation of concrete particles. Use hearing protection as the noise from drilling and breaking can be loud.

Double-check that all your tools are in good working order. It’s wise to inspect the drill bits for wear and ensure your drill has enough power to handle concrete. Having all protective equipment in place minimizes the risk of injury.

Step 3: Select the Right Drill Bit

Pick a masonry drill bit suitable for concrete, preferably a carbide-tipped one. These are specifically designed to penetrate hard surfaces and will last much longer than regular bits. Size your bit according to the thickness of the slab and your drill’s capacity.

Insert the bit into your drill, double-check that it’s securely fastened, and set your drill to the hammer or rotary mode if available. Using the right drill bit improves efficiency and helps you achieve cleaner, more precise holes.

Masonry Drill Bit 
Suitable for Concrete

Step 4: Drill a Series of Holes

Begin drilling holes along your marked line, spacing them about 4–6 inches apart. The depth of the holes should ideally be at least half the thickness of the concrete. Drilling multiple holes weakens the slab, making it easier to break apart.

Take regular breaks as concrete can be tough and the drill may overheat. Apply slight, consistent pressure rather than forcing the drill, which can damage both the bit and your tool. Use a water spray to keep dust levels down as you drill.

Step 5: Expand the Holes If Needed

If the concrete is particularly thick or tough, you may need to widen the holes or drill more in between the existing ones. This further weakens the structure and preps it for breaking. Deepening the holes can also be necessary if the initial drilling hasn’t reached the required depth.

As you expand the holes, pay attention to any signs of cracks or shifting in the slab. This will help you identify where to target your efforts next. Always ensure your footing is stable to avoid accidents as you work.

Step 6: Break the Concrete Along the Drilled Line

Once the holes are drilled, use a sledgehammer, chisel, or pry bar to strike between the holes. The slab should start to crack along the weakened line. Focus your effort on these points rather than hitting random spots.

Breaking the concrete may take several passes. Don’t rush—work methodically along the drilled sections, using steady pressure and repeated blows. If needed, alternate between striking and prying to lift or further fracture the pieces.

Strike Between 
The Holes

Step 7: Remove Broken Pieces Safely

After you’ve broken the concrete into manageable pieces, carefully lift them out of the work area. Use a crowbar or pry bar to help if they’re stuck. Wear gloves at all times to protect your hands from sharp edges and heavy fragments.

Place the broken pieces in a wheelbarrow or sturdy container for easier disposal. Avoid overloading yourself as concrete can be very heavy. Clear the debris as you go to maintain a safe and efficient workspace.

Step 8: Clean Up and Inspect

Finish by cleaning up leftover dust and any small fragments. Sweep the area thoroughly and dispose of debris according to local regulations. If necessary, use water to wash down the remaining surface, controlling dust further.

Inspect the site to ensure all the concrete has been removed as planned. Check for any damage to nearby structures or utilities. Proper cleanup leaves your workspace safe and prepares it for your next project.

Following these steps on how to break concrete with a drill can save you time and effort while also ensuring a clean and efficient removal process. Remember to always wear proper safety gear and follow manufacturer instructions for your specific drill model.

Tips

Take your time and do not rush the process—even small mistakes can lead to accidents or property damage. Always double-check for utilities like gas or electrical lines before you start drilling. Keep your drill bits sharp and replace them if they become worn, as dull bits can overheat and reduce efficiency. Spraying water as you drill will control dust and prolong the life of your drill bits. Lastly, work in small, manageable sections to reduce strain and maintain control over the workflow.

Lead to Accidents 
Or Property Damage

How Much Will It Cost?

The cost of breaking concrete with a drill varies based on the size of your project and what tools you already own. Renting a heavy-duty drill and buying masonry bits can cost between $40 and $100 per day, while safety gear and additional tools might add another $50–$100. If you already own some of the equipment, your expenses will be lower. Make sure to account for disposal fees or costs associated with hauling away debris, which can also add up. Planning ahead and estimating your needs will help you avoid unnecessary expenses and stay within budget.

Frequently Asked Questions

Q1: Is It Safe to Break Concrete With a Drill?

A1: Breaking concrete with a drill is safe as long as you follow proper precautions. Always use safety gear, check for buried utilities, and work in a controlled manner. Avoid working alone if possible, and keep your workspace organized. Safety should always be your top priority during demolition work.

Q2: What Type of Drill Should I Use for Concrete?

A2: For best results, use a rotary hammer or hammer drill equipped with masonry drill bits. These tools have the power and specific settings needed to effectively penetrate concrete. Regular drills can struggle and may even burn out or break down during the process. Investing in or renting the right drill will make the job much easier.

Q3: How Can I Dispose of Broken Concrete Pieces?

A3: Broken concrete can be disposed of at local recycling centers, landfill sites, or through specialized construction debris services. You may need to arrange for a pickup or rent a dumpster, depending on the quantity. Always check local regulations first to ensure proper and legal disposal. If the pieces are small, some areas also allow curbside pickup with advanced notice.

Q4: Can I Break Concrete Without Power Tools?

A4: While it is possible to break concrete using only manual tools like sledgehammers and chisels, the process is much more physically demanding and time-consuming. Power tools like drills and rotary hammers greatly speed up the process and reduce fatigue. For smaller jobs or areas with limited access, manual tools may still be practical if you’re prepared for the effort involved.

Conclusion

Breaking concrete with a drill is a manageable DIY project if you plan carefully and have the right tools at your disposal. By following the step-by-step guidelines on how to break concrete with a drill above, you can safely and efficiently tackle concrete demolition in your home or yard.

Prioritize safety at every stage, be mindful of your surroundings, and don’t hesitate to seek professional help if the scope of the project grows too large. With the proper approach, you’ll be ready to clear the way for your next big project.