Many people reach for their hacksaws when they need to remove a bolt from concrete. This can prove to be time-consuming and difficult. You can use a reciprocating tool instead. How do you cut a bolt sticking out of concrete using a reciprocating saw.
To cut a bolt protruding out of concrete, first mark the line with a pencil. Next, you will need to start cutting along that line. After the blade has cut through bolts, you can lift it from concrete.
This article will show you how to use a reciprocatingsaw to remove concrete bolts. You will also find helpful tips regarding blade selection. Lets get started!
These are the steps you should follow to use a reciprocatingsaw to remove bolts from concrete.
Step 1.
Turn off the power supply and disconnect the cord. Before you begin any drilling or cutting tasks, make sure that your tools are off.
Step 2.
If possible, use a carbide-tip blade for masonry applications. A carbide-tip knife can cut concrete faster than a regular one. The tip may be damaged if the blade is overheated or burned. You might also be interested in How To Attach A Reciprocating Saw Blade.
Step 3.
To drill into concrete, you can use a hammer drill and a masonry bit to make a hole for your saw blade. Not all saw blades come with depth-adjustment features and a side handle.
You shouldn’t use a standard electric drill as it is not designed to handle the torque required by these types blades.
Step 4.
After you have cut through the concrete layer, switch to a carbide blade and a reciprocating saw blade for metal cutting. This blade has high-speed rotation speed and is powerful enough to cut through thick steel bolts. Learn how to control the speed of your reciprocating saw.
For cutting through concrete’s second layer, a metal-cutting knife will work. To make deep and clean cuts, ensure that your blade is at least twice the width of your saw’s throat opening.
5.
After removing the concrete layers one and two, switch to the carbide-tip knife and continue cutting through concrete layer three and four.
The blade may crack if it is too hot. The bolt should now be exposed enough that you can remove it with pliers or hand.
Step 6.
Continue repeating steps 1 through 5 until every bolt sticking out of concrete is removed.
Tips & Tricks:
To cut through concrete’s first layer, you can use a hammer drill and masonry bits to make a point for your blade.
You may find it useful to use a prybar or chisel before switching blades to remove stubborn areas that might be preventing your saw blade from progressing.
Applying an oil-based grease to bolts and bolts that protrude from concrete can speed up your process. Carbide blades can be damaged by oil-based lubricants.
This article might interest you: How to Rotate Reciprocating saw
Safety Tips
It is crucial to use the correct safety gear when cutting bolts from concrete using a reciprocating saw. These precautions include:
- Protective gloves and safety glasses are recommended for cutting bolts that protrude from concrete.
- If you see cracking in the concrete or gravel, take a step back.
- If you see cracks in the concrete or pieces of gravel that have been removed from drilling, take a step back.
- At all times, keep your fingers clear of saw triggers and blades. Keep all other people away from the work area.
- To avoid injury to the blade or the saw, immediately turn off the power if the blade becomes stuck in concrete. If the blade suddenly jerks violently when it releases tension from a stuck blade, this can cause injury to you or others.
- To avoid injury to the blade or the saw, immediately turn off the power if the blade becomes stuck in concrete. If the blade suddenly jerks violently when it releases tension from a stuck blade, this can cause injury to you or others.
- After the job is done, turn off your saw. Wait for the blades and the saw to stop completely before you place the saw down or put on safety gear.
Conclusion:
FAQs:
Which type of blade should you use to cut concrete?
A metal-cutting reciprocating blade is the best choice for cutting bolts protruding from concrete. For cutting through concrete’s second and third layers, a metal-cutting blade is also useful.
Which type of blade should you use to cut bolts?
You can use either metal-cutting or carbide blades to cut bolts. However, it is best to use a metallic-cutting knife.
How frequently should the blade be replaced?
If you are cutting a bolt out of concrete using a reciprocating saw, be sure to replace your blade immediately you notice any nicks or severe damage. This is particularly important when you are working in thick concrete. Learn how to change the Ryobi reciprocating saw blade
How deep is the blade to be when cutting concrete?
It is best to place the blade as close as possible to concrete to cut bolts that protrude from it. This will allow you to cut through the first two layers of concrete, without having to go too deep into the third.
What dangers are there in cutting a bolt protruding from concrete.
It is crucial to be aware of how close the blades are to your face and hands when cutting concrete bolts. You should also ensure that any other people are not in your way.
This job can be accomplished with an angle grinder.
An angle grinder will make it much easier to remove bolts from concrete. An angle grinder is also less likely to produce flying debris that could injure your face or hands.
