Will an angle grinder cut concrete?

An angle grinder is a power tool that can be used for cutting through different types of materials, including metal and other solid materials such as bricks, aluminium, stone and concrete.

Can you cut cement with a grinder?

One of the many tools you can use to cut concrete is an angle grinder. You can use an angle grinder with a diamond blade to cut concrete and masonry. For heavy-duty deep cuts in concrete, you should use a masonry cut off saw.

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 grinder should I use for concrete?

Planetary Grinders

Multiple discs with different abrasiveness allow a planetary grinder to remove material and finish a concrete floor at the same time. These grinders are more lightweight and easier to maneuver than the rotary grinder.

How do you cut thick 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 to Cut Concrete with a Angle Grinder

What is the fastest way to grind concrete?

An aggressive wheel, which can take down 1/4 in. of concrete or more, grinds away material faster but leaves a rougher surface. A less aggressive wheel removes smaller amounts of concrete and leaves a smoother surface.

Can I use a metal cutting disc on concrete?

Yes, certain diamond blades can cut through metal, but this will depend entirely on the blades application. Most diamond blades are used to cut through concrete, brick, tile, and asphalt.

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.

Is it better to cut concrete wet or dry?

Cleaner job site: During wet cutting, water combines with dust, creating a concrete slurry. While this minimizes dry particles in the air, it creates a mess to clean. Dry cutting creates a cleaner job site and can be combined with a dust extractor or vacuum to remove dust.

How hard is it to cut concrete?

Wet concrete is very difficult to cut, and fully cured concrete can fracture as it's being cut. So if possible, cut concrete when it's hard but only half cured. The cut will come out smoother with less dust.

How do you cut a concrete slab 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 9 inch angle grinder cut?

For example a 4" grinder can go as deep as an inch and a 9" grinder can go as deep as 3" depending on the angle/ position. This grinder is very powerful, a bit heavy but that's to be expected for a unit this size.

How much can 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.

When can you grind concrete?

We like to give the Concrete will take approximately 28 days to cure before we we can like to begin grinding. The curing period is very important to develop both the strength and durability of the concrete.

How much does it cost to grind down concrete?

Cost to Grind Concrete Floor

The cost to grind a concrete floor is $1 to $4 per square foot. Grinding or sanding concrete removes adhesives and curing agents, opens up the pores, removes the smooth look, and flattens the surface. Then, polishing hones the surface to a shine for $2 to $6 per square foot.

How can I grind concrete without dust?

If no dust extraction is available for drilling or grinding, running a water hose onto the surface or holding a vacuum up to the tool will keep dust down. Use a drill dust attachment by turning the vacuum on and sticking the attachment to the surface. The suction from the vacuum should hold it in place.

Can a skill saw cut concrete?

Contractors and homeowners use circular saws to cut large pieces of wood, metal, brick, plastic and even concrete. These saws provide a great deal of capacity and precision, but cutting concrete with a circular saw is not an easy job for beginners.

Can a Sawzall cut concrete?

A reciprocating Sawzall is good for cutting concrete if you have the right blade, but it works best on thinner slabs or cinder block. It's all about the blade. Buy a blade as long as possible and with a diamond or carbide grit.