What is the best way to cut a hole in concrete?

Use a standard circular saw, equipped with a corundum or diamond blade, for small tasks. For slabs, it's best to cut through the top inch, then use a sledgehammer to break off the rest. The jagged edge left below the cutting line provides a good rough edge for the new concrete to bond to.
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How can I cut a hole in concrete?

Start the drill at its lowest speed for better control. Drill forward with steady, light pressure; do not force the drill. Drill the guide hole to a depth of 1/8- to ¼-inch. Stop the drill, sweep or blow away the accumulated concrete dust and pull out the drill.
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What tool is used for cutting concrete?

A concrete saw is a power tool that is used for cutting concrete, tiles, asphalt, and other solid materials. It is also known as consaw or road saw. The blades of a concrete saw are diamond tipped that owes to its easy cutting through hard materials. Concrete saws are more powerful than conventional saws.
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How do you cut concrete without a concrete saw?

If your cut doesn't need to be exact, use a cold chisel and hand sledge to cut the concrete. Score the length of the cut three or four times with the chisel. A circular saw with a masonry blade can also be used to either score or completely cut through the block.
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How do you drill a hole in concrete without a hammer drill?

There are two effective methods of drilling into concrete without a hammer drill. The first method is to use a masonry bit with a regular drill for smaller holes and the second option is to use diamond or carbide core bits to drill large diameter holes.
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Best way to cut a hole in concrete floor



Should I use water when drilling concrete?

Though you don't need to water down the concrete, the water will help to collect and remove the drilling dust, which can be hazardous to your health and "clog" the drill bit. The water can also help to keep your bit from overheating, which in turn helps keep the bit from shattering.
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What is the best drill to drill concrete?

Best Drills for Concrete

The best drill for concrete today is one of two tools: A hammer drill or a rotary hammer.
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Can you drill concrete with a regular drill?

Can you use a regular drill to drill into concrete? Regular drills can be used for drilling into concrete. However, this may not be an efficient way and you'll likely end up breaking a drill bit or two. Instead, opt for a hammer drill to save time and energy.
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Can a hole saw cut through concrete?

Your bimetal hole saw is practically used to cut both wood and metal. But when you are looking to cut through concrete, you need to think of buying a diamond or carborundum grit 3 inch hole saw. This will cut through the concrete perfectly.
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What speed should you drill concrete?

The drill should be run fairly low, around 350 to 750 RPM. Frequently removing the bit from the hole to clear out the cuttings will help prevent the bit from overheating. The drilling chore is done much quicker and easier with a rotary percussion hammer drill.
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How do you chisel a hole in concrete?

Grasp the bottom end of the handle of a small sledge hammer tightly. Tap the head of the chisel with a half-swing and immediately strike it again with a full swing. Continue digging a hole in the concrete with only one point of the cold chisel using a half-strike/full-strike double tap of your sledge.
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How do you drill a 2 inch hole in a concrete foundation?

Use a diamond core drill to get a nice clean hole.
...
  1. Get a 1/2" variable-speed hammer drill, a 1/4" carbide-tipped (masonry) drill bit long enough to go all the way through the wall, a 2-lb. ...
  2. Hammer-drill a 1/4" pilot hole all the way through the wall with the carbide-tipped masonry drill bit.
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Why is my drill not making a hole?

The most common reason a drill won't penetrate a wall at all is because the drill is spinning in the wrong direction. If the drill bit enters the wall and then hits resistance, the typical cause is a metal plate or masonry obstruction.
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Why can't I drill into concrete?

Drilling into concrete is difficult because concrete is dense, is hard, and has embedded aggregate stones that can be obstacles to the drill bit. Drilling can quickly dull drill bits. When the bit encounters aggregate, the bit drags even more. The preferred tool for drilling into concrete is a hammer drill.
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Will a cordless drill go through concrete?

In most cases, yes. While a cordless drill will not be as effective in drilling through concrete, it can get the job done. Your drill's battery power and other drilling features will play a role in its ability to drill into the concrete effectively.
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How do you cut a hole in a poured concrete wall?

If you're drilling into concrete you'll need an hammer drill and some impact bits. For a hole larger than 1" I'd probably use some sort of air hammer to chisel through the concrete. If you come across rebar you could chisel around it and then cut it out with a hacksaw blade.
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Can I use a regular drill instead of a hammer drill?

Your regular drill isn't nearly as powerful as a hammer drill when it comes to penetrating into concrete. You're going to need to start with smaller masonry drill bits and work your way up. Tip #2: Focus on efficiency, not time.
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What is the best blade for cutting concrete?

Diamond saw blades are typically the best choice when it comes to making clean, professional cuts in concrete.
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Can you cut concrete without water?

No water required: While wet cutting requires a constant stream of pressurized water, dry cutting uses airflow to prevent overheating. Use dry cutting when there is no water source or when the job site needs to stay dry at all times, such as indoor construction.
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Can an angle grinder cut concrete?

Cutting concrete floors, walls, slabs, and pavers is common in construction. Angle grinders are more convenient than concrete cutting saws for small jobs. Angle grinders can also cut tiles, bricks, granite, and marble. A concrete-cutting angle grinder makes straight, sharp cuts in concrete blocks.
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How do you cut concrete by hand?

Use your dominant hand to grip the back handle and push the blade forward and backward. Begin cutting at the edge of the concrete and slowly follow the chalk line. Don't press the blade into the ground—let the weight of the blade and saw do the work. Remove the blade every 30 to 45 seconds to avoid overheating.
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