How to Cut Rebar with Grinder, Hacksaw & More

How to Cut Rebar with Grinder, Hacksaw & More

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You can find tools to get your rebar cutting job done in a timely manner without always sacrificing cost. The high quality, reliable nature of these tools ensures you’ll finish the job with excellent results.

There are a few things to consider when choosing the tool that meets your needs. And because you’ll only want to select the best equipment, here is a list of the six best tools for cutting rebar.

6 Best Tools for Cutting Rebar

Let’s dive right into the list. Before continuing, it’s worth noting that while the first tool is dedicated to the task, the other tools are much more versatile.

Rebar Cutter

CCTI Portable Rebar Cutter - Electric Hydraulic Cut Up to #6 3/4" Rebar and Round Bar(Model: RC-196C) The very first tool that must be mentioned is the rebar cutter. It’s a power tool, generally corded, designed specifically for this task.

The downside of this tool is, of course, that you cannot use the tool for much else. As such, you should only consider getting a dedicated rebar cutter if you are a professional that needs to get a lot of rebar cutting done day-in and day-out.

If that’s the case, then having this tool in your arsenal will save you a lot of time and frustration. Should you decide to get the tool, make sure to check my list of the best rebar cutters.

Angle Grinder

Angle Grinder The angle grinder is another highly recommended tool for cutting rebar. In fact, short of getting a dedicated rebar cutter, this is the best option.

Angle grinders are tough and made with high quality, durable materials to ensure a clean cut. When using an angle grinder, it is essential to find the correct size to be confident you’re efficiently getting the job done. Finding the correct size is one of the downsides of using an angle grinder because it can be challenging at times. You can use a grinder that is small for simple jobs, but it might not be effective when cutting rebar. Large grinders can definitely do the trick, but they may be heavy and a bit difficult to maneuver.

When searching for the perfect angle grinder, you need to make sure you’re using the right cutting disc. One with a ceramic coating, for example, could end up breaking not be able to cut the rebar.

How to Cut Rebar with an Angle Grinder

Here’s a quick overview of how to use an angle grinder to cut rebar:

  • Step 1: Make sure you are using a wheel that is strong enough to cut steel.
  • Step 2: Now, you can set your disc in the grinder.
  • Step 3: Secure the rebar in a vice or clamp.
  • Step 4: After everything is secure, outline the design you intend to cut on the rebar.
  • Step 5: Make a cut straight down with the grinder following the outline.
  • Step 6: Use the grit accessory to smooth any jagged edges.

For more details, check my more detailed article on the process.

Cutting Rebar with an Angle Grinder


Hacksaw Hacksaws work great with rebar #4, which is a 1/2-inch in diameter, or smaller. This makes them a great tool for lighter jobs. They are not ideal, however, for jobs with a heavy load.

You’ll also have to replace the blades often because they wear out too quickly. Using a hacksaw can also be a lengthy process since it is dependent on your physical abilities. It is crucial that you take any project deadlines into consideration and plan accordingly if you plan on using this tool.

How to Cut Rebar with a Hacksaw

Here’s a quick overview of how to use a hacksaw to cut rebar:

  • Step 1: Use a measuring tape to measure the desired length of the rebar.
  • Step 2: Place the rebar on a sturdy work surface. You want to make sure the point you intend to cut is only a few inches from the surface. You don’t want the rebar vibrating while you are cutting it.
  • Step 3: Clamp the rebar securely to the work surface. Make sure the clamp is positioned as near to the point where the rebar will be cut as possible.
  • Step 4: With your hacksaw, make short, cutting motions until you create a groove. After this, make long, steady cuts. Make sure you use as much of the blade length as possible.

Bolt Cutters

Bolt Cutters This is a simple yet incredibly strong solution to cutting rebar. Bolt cutters are amazingly tough. They have blades like scissors that powerfully chop through steel. They are the first tools people tend to grab to break locks and chains, so it’s no surprise that they’re great for snapping rebar.

This is a very handy tool to use when you need to trim a piece of rebar down quickly.

They are incredibly affordable, lightweight, and silent. They are great for a quick, small job but not ideal for a larger project. Since they are manually operated, the speed still can’t compare to a tool that doesn’t rely on human power.

How to Cut Rebar with Bolt Cutters

Here’s a quick overview of how to use bolt cutters to cut rebar:

  • Step 1: Hold the bolt cutters with both hands with the jaws facing away from you.
  • Step 2: Pull both handles apart as far as you possibly can to open it fully.
  • Step 3: Put the middle of the cutting edges around your rebar. Avoid cutting diagonally because this may cause the jaws to twist and slide off the rebar.
  • Step 4: Hold the handles firmly, bring them together, and cut through the rebar.

Cutting Rebar wth Bolt Cutters

Circular Saw

Circular Saw The sharp blades of a circular saw can easily and quickly slice through a piece of rebar. To ensure the job gets done fast, make sure you choose a blade specifically made for metal.

A diamond blade is recommended to ensure consistent quality cuts. Choosing a diamond blade that is high quality will ensure efficiency for up to 12 hours. It helps you avoid other problems that can be the direct result of a dull tool as well.

You can also choose between two other options: steel tooth blades and carbide tooth blades. These blades will need to be replaced more often than diamond blades and are more expensive, though.

Can You Cut Rebar with a Dremel?

You can absolutely cut rebar with a Dremel. Your best option will be getting one that is specially made for cutting metal. A die grinder that has a small cut off wheel is highly recommended.

Unfortunately, you will still be replacing your blade a lot. The Dremel likely isn’t an excellent choice for larger loads. However, it is a cost-effective and lightweight option for a quick, small job.


Deciding which tool to use when cutting rebar largely depends on the output you’re looking for. If you have a light job that doesn’t require exact precision, the more straightforward and more cost-effective options are excellent for you.

If you have a more massive job and want to make sure that each piece of rebar you cut is exact, you’ll want to opt for the heavy-duty tools – either a rebar cutter or an angle grinder. Alternatively, while not listed above, you can also cut rebar with a Sawzall or other reciprocating saw.

Each option has its pros and cons, so it’s crucial you weigh out the benefits with any potential risks. This will ensure you choose the right cutting tool for the job at hand.