Turn the angle grinder on and allow the disc to reach full speed before setting it down on the concrete surface to achieve smoother and better results. Yes, using an angle grinder to cut concrete has a few disadvantages, but they’re mainly related to leveling and grinding a concrete floor. Thank you for reading our post on how to cut concrete with an angle grinder! Angle grinders are extremely versatile tools, and even though they weren’t primarily designed with concrete in mind, they can become a great ally for the handyman who needs to do occasional and small concrete cutting work.
The amps in the motor of the angle grinder determine how fast the grinder will cut. Cutting concrete with an angle grinder is always best done with a diamond saw blade. Choosing a diamond blade for cutting concrete with an angle grinder is a no-brainer, but your options do not stop there.
Once you have your blade picked out, you can kick on your angle grinder and begin the concrete cutting process. Cutting concrete with an angle grinder for the first time can be challenging for even some experienced DIYers. You may have come into this thinking that cutting concrete with an angle grinder would be a bridge too far for that productive power tool.
These angle grinders give you more power and flexibility. Small grinders have an RPM of up to 11000, while large grinders have a lower maximum RPM of 8000. It’s perfect for professionals that really put their angle grinders to work.
We will discuss a few tips for choosing the right grinder size for the job. If a 7-inch grinder is spinning at speeds of 5,000 RPM while it is sanding a floor, its greater design and slower speed is generating less heat than a 4.5-inch grinder that is spinning away at 10,000 RPM. While the greater speed gives the grinder more power, it also makes it much easier to fail. These are just a few tips for selecting the right grinder size for the job.
Bosch 4-1/2-Inch Angle Grinder 1375A. This is the Bosch 4-1/2-Inch Angle Grinder 1375A and recommended by many users that can perfectly provide cut on concrete. You can pick the best angle grinder wheel for concrete that can provide full performance and ultimate value while using for projects. This metita variant also comes in best 7 inch angle grinder for concrete if you are a longer size of angle grinder by this you can also pick this 7 inch length angle grinder for your work.
Iezzi: Hand-held grinders are generally grouped into two different categories: small angle grinders and large angle grinders. Iezzi: Bosch Power Tools of North America has close to 20 different grinder variations, from tuckpointing grinders to small and large angle grinders. Iezzi: Grinders usually cost $100, with a bare-minimum grinder starting around $70 and a high-end grinder reaching upward of $180. You’ll pay roughly $50 more for a cordless grinder when comparing it to a similar corded model.
If you have to cut concrete or do a heavy amount of grinding a 9 Inch grinder is a lot faster and more suitable for the job compared to a smaller handheld grinder. A 9-inch angle grinder with a cup stone attachment will do nicely for grinding concrete and leveling bumps in concrete floors. If you need to do a lot of refinishing work on a floor, you might be better off using a dedicated floor grinder instead. These tools will grind concrete much more quickly than by hand.
what size angle grinder to cut concrete Related Question:
Can an angle grinder cut through concrete?
Concrete cutting is a common task at the construction area, such as cutting concrete floor, concrete wall, concrete slabs and concrete pavers. Although the various concrete cutting saw is available, an angle grinder is the most convenient tool for small concrete cutting work.
How deep can a 4.5 inch angle grinder cut?
A 4.5 angle grinder has a blade that is 4.5-inches in diameter. This means the blade extends 2.25-inches for the center in each direction. As a result, it is not physically able to cut through 4 inch concrete. Select a larger grinder when a deep cuts are necessary, such as a 9-inch grinder.
How deep can a 125mm angle grinder cut?
All in all, 125mm angle grinders are extremely versatile tools despite their limited cutting depth of just 38 mm. While 115mm angle grinders offer a maximum cutting depth of only 30 mm, they are precise, easy to handle and lighter than larger versions.
What kind of blade Do I need to cut concrete?
Any handy homeowner looking to cut concrete needs one crucial tool: a diamond blade. While abrasive blades can cut concrete, they wear out quickly, potentially needing to be replaced multiple times in the course of one project.
What is the best way to cut 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.
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.
How deep can a concrete saw cut?
They can cut through 12 to 14-inches of concrete. It is wise to use a strong power source for cut-off machines to increase their speed. They also become simpler to use and are less noisy. This is even more so if the main focus is on the depth of the cut as opposed to the noise created when in an enclosed environment.
What is a 7 inch angle grinder used for?
Angle grinders are versatile tools that can grind metal and cut tile, stucco and pavers, rout out mortar, plus they can sand, polish and sharpen. Learn to use an angle grinder to cut tile, mortar and pavers; make quick work of rust and loose paint removal; sharpen blades and cut or grind steel.
Can I use bigger disc on angle grinder?
Fitting a 14 inch (356 mm) cut-off disc to a 9 inch (230 mm) angle grinder will increase the edge speed excessively to at least 120 m/s (430 kmph). The photograph below shows an angle grinder with the wrong size cutting disc fitted and the guard removed.
What is the most popular size angle grinder?
The most commonly used sizes are the 4” and 4 ½”. These grinders typically have the capacity for wheel diameters of up to 7”, with particularly small versions having the capacity for 3” discs.
What sizes do angle grinders come in?
Angle grinder size comes in a variety of sizes. But don’t get confused because there are only 3 sizes, namely the 4.5-inch, 7-inch and the 9-inch you could best choose from. The 4.5-inch is mainly for home and domestic use.
How deep can a 14 inch concrete saw cut?
A 14-inch circular blade on a cut-off saw is designed for a maximum depth of slightly less than five inches.
How long will a diamond blade last cutting concrete?
Diamond-edged blades. They can last between 12 and 120 hours of continuous use, depending on the quality of the blade and material they’re used to cut.
How much will a concrete grinder remove?
How much will a concrete grinder remove? A grinder can take off up to 1/8 of an inch of material with each pass — less than a concrete scarifier, which cuts into surface coatings and the underlying concrete and can cut about 1/4 of an inch with each pass.
Can you grind concrete to level it?
If you have an uneven concrete slab, you could replace it or cover it with leveling compound. But consider grinding it instead. Powerful grinding equipment is available at rental centers that cater to contractors.
