With the right attachment, say a cutting wheel, for example, an angle grinder can join your power tool arsenal as a metal-cutting machine. The hard mortar in these buildings demand no less than angle grinders for their removal. As a matter of fact, I consider these machines to be the epitome of versatility. Angle grinders toss a helluva lot of dust into the air, so make sure to wear your dust mask, safety goggles, and gloves. For example, if the space that the cinder block needs to fit into is 8 inches (20 cm) long, measure 8 inches (20 cm) in from the end of a cinderblock and make a chalk mark. Outline the hole you want and cut the line as deeply as the blade will go. Mark the cut … It’s also worth noting that you can use an angle grinder to remove old mortar without damaging the bricks. Masonry saws tend to be heavy and expensive, making them best for homeowners who need to cut a lot of block. If cutting straight lines completely across the block's face, cut both outside edges before cutting the centre of the line. But when you want to replace the old tiles, an angle grinder is what you need. Finish the corner cuts and trim any excess concrete from the cut with the angle grinder on the reverse side of the concrete block. Angle grinders are powerful machines, and as you know, with great power comes a great risk of injury, especially that grinder discs spin at high speeds that can reach 10,000 to 11,000 RPM. For 1 brick walls (230mm thick) I have used an angle grinder outside and drilled inside. Sometimes whole concrete blocks will not fit into the space they're meant to be placed. Cut through the concrete block along the score marks with the angle grinder. Are angle grinders dangerous? Squeeze the trigger inside of the saw’s handguard to start the blade spinning. Use the chalk to mark the spot where you’ll cut the block. Stock Footage of Cutting the concrete slab with an angle grinder - 15s. An angle grinder will not cut deep enough. Simply put, an angle grinder is a handheld power tool with a rotating disc that’s mainly used for grinding and polishing. Video: 115349700 These saws work more like grinders than conventional saws, wearing away at the surface of the block. So I bought a cheapish angle grinder which came with diamond blades and stone grinding discs. The guard is there to protect you, so attach it whenever it’s possible. Not only can you use an angle grinder to grind metal, but you can also utilize one to cut, sharpen, sand and polish different kinds of surfaces and materials. ... are called cinder blocks in the United States, breeze blocks (breeze is a synonym of ash) in the United Kingdom, and hollow blocks … Those two attachments are designed for slightly different purposes, though. Use an angle grinder to cut the straight vertical lines into the wall. I cut loads of block paving bricks with a 9" angle grinder and a diamond stone-cutting disk when I built my patio. He is a certified HVAC universal technician. 4-1/2” Premium Segmented Diamond Blade for FAST & RELIABLE Tile,Concrete, Cinder Block & Brick Cutting, compatible with All 4-1/2” Angle Grinders and marble cutters ,with 7/8” arbor Stronger hot-pressed cutting segments combines aggressive cutting ability with a fine, clean cut and no burning of the segments. Angle grinders throw debris and create a lot of dust while cutting concrete blocks. Features a premium silicon carbide blend for fast material removal and long cutting life. Make multiple passes, making shallow cuts. That’s why you can find discs of those sizes at any hardware store. A concrete-cutting blade for an angle grinder has a diamond-studded rim with ventilation grooves -- a tile-cutting blade uses diamond studs but does not have the grooves. Not safely, but the same 7 1/4 blade can mount to most angle grinders … It is possible to buy an angle grinder for less than £10 but as the saying goes, you get what you pay for. 1. These can easily cut through stone, tiles, and concrete. It’s also worth noting that you can use an angle grinder to remove old mortar without damaging the bricks. 5 Pack – 4 1/2 Cut Off Wheel Concrete Grinding Wheel for Cutting Masonry Stone Brick Block - Compatible With All 4 1/2 inch Angle Grinder – Grinding Discs 4 1/2 Inches - … A lot of brick dust will be kicked up, so wear a dust mask, safety glasses and earmuffs. High-quality diamonds. As you’ve noticed, angle grinders are incredibly versatile, and using yours for different purposes and applications is as simple as switching the wheel or attachment. In addition, cutting metal with an angle grinder is sure to send out a fair bit of debris, not to mention sparks. Several consecutive blows should do the trick. Remember to wear a face shield and safety goggles, though, as the process can be really dusty. Use a hammer and a heavy chisel to … Here are some precautions that you can take: Of course, those tips are directly related to angle grinders, and you still need to follow general safety precautions that apply to all power tools. Use a 4 1/2-inch angle grinder equipped with a diamond blade to cut through the mortar via the lines you traced in the mortar as a guide. When replacing a new wheel, run it in a protected area to make sure it isn’t defective. Cut around the entire block with the saw, then adjust it so it will cut 1/4 inch to 1/2 inch deeper into the block. Cutting with an angle grinder is easier said than done, though. Once it’s at full speed, press the saw forward so it cuts through the cinder block. Cutting Concrete Blocks. The slab is quite old (built same time as the house, I'm guessing 1950's or so and in the shed. For instance, if you need to cut masonry or another stubborn material, you ought to get an angle grinder that has a powerful drive motor, preferably one that’s five to seven amps. Strike the chisel on the score line until the material splits. Thousands of products. Cutting hollow concrete block—first, score the line. Remove motor oil stains from a brick driveway→. I know a wet saw would be the best way to go but was wondering if I could get away with a large angle grinder and what types of discs I'd need and roughtly what they'd cost. Last edited: Jul 3, 2019. 30 day money back guarantee. If you will be cutting large slabs of stone, opt for the 230mm but if you are cutting smaller bricks, opt for the 115mm size. Cutting marble is a delicate process that requires precision cuts to achieve a professional result. Typically, the most common size of an angle grinder is 4.5 inches, meaning that it uses discs that are 4.5 inches in diameter, and is a sufficient size for most workshop projects. Six Teeth Power Wood Carving Disc Tool Milling Cutter Angle Grinder Attachment, 90mm Diameter, 16mm Bore, Woodworking Turbo Tea Tray Digging Wood Carving Disc Tool for Angle Grinder 4.0 out of 5 stars 168. You could try a small (4-1/2"?) An angle grinder can be powered by one of three power sources: electricity, petrol, and compressed air, and it can be either corded or cordless. Then repeat the process at the other end of the cut mark until the groove forms a channel. For example, a 7-inch grinder will cut though small pieces of wood in no time, but using that same grinder on a wooden beam will be more of a chore. It’s constructed with three full sheets of fiberglass for utmost resilience and grinding power in pulverizing stonework. Tips for Keeping Concrete … If cutting a hole in the centre of the concrete block, work the angle grinder's … Keep in mind that a professional tile saw is a better option for cutting in a straight line. Wire discs, on the other hand, can be used to clean hard-to-reach spots, such as corners and crevices. Use the hammer and chisel to score or cut a groove into the block or paver on all sides. To avoid such an issue, make sure to keep moving the grinder throughout the operation. You may want to cut some blocks for your yard, cut a wall or slab or whatever you want, but if you are trying to cut it, you have to … When not in use, store your angle grinders away from children. What thickness concrete / block will a 9" angle grinder with diamond blade cut I have a little 4.5" angle grinder which only cuts to approx 1"depth and was thinking of upgrading before the next project. Cutting attachments are equally diverse, and today, there’s practically a different attachment for each purpose, such as: Depending on the material you’re trying to cut or finish, you can pick a different size, model, and motor. What thickness concrete / block will a 9" angle grinder with diamond blade cut ? While doing masonry work wear a face shield to protect yourself from the flying debris. If that happens, the edge will become a bluish black or straw- colored and may wear off quickly. Buy online & collect in hundreds of stores in as little as 1 minute! Went through very easily. Seriously, make sure you wear eye protection. How to Cut Concrete Blocks With an Angle Grinder. Draw a straight line across the block's surface at the measurement marks with a pencil, using a carpenter's square as a guide. Well, angle grinders come with two basic wheel sizes: 115mm and 230mm. However, the … Again, cutting such materials repeatedly can wear off your motor quickly, so make sure to get a powerful unit from the get-go. Best 4-1/4″ to 6″ Cordless Angle Grinder Evaluation. Cutting Metal. Layout the cut on the concrete block with a tape measure and pencil. For cutting concrete, block, brick, stone and other masonry material. One thing to note here: not all accessories are compatible with all angle grinders, so look for a model that matches your job’s requirements. 5 Pack – 4 1/2 Cut Off Wheel Concrete Grinding Wheel for Cutting Masonry Stone Brick Block - Compatible With All 4 1/2 inch Angle Grinder – Grinding Discs 4 1/2 Inches - 4-1/2" x 7/8” x 5/64” 4.5 … How to Cut Bricks with an Angle Grinder. A: Angle grinders can cut through metal and a variety of materials with ease, but each material requires the use of a unique disc attachment. The dust will be tremendous, and getting the blade to cut through to the back side of the block will be a real treat, unless you cut it from the inside and that would doing it blind after the dust starts. Fortunately, you can easily cut these materials using an angle grinder, simply by attaching a dry-cut diamond disc, which would make the task a breeze. Cut through the concrete block along the score marks with the angle grinder. In this article, we’ll show you how to use an inexpensive angle grinder with a diamond blade to cut perfect circles and squares in even the toughest tile. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. A concrete-cutting blade for an angle grinder has a diamond-studded rim with ventilation grooves -- a tile-cutting blade uses diamond studs but does not have the grooves. Protect Yourself. Explore similar videos at Adobe Stock Cutting out mortar in modern buildings demand powered tools. Male hands in gloves with an electric circular saw cut the concrete block and dust flies around. If you’re not working alone, make sure everyone in the room is wearing a dust mask. Concrete is a mix of sand, gravel, cement and water, and it is everywhere. angle grinder handles cutting and polishing applications including thick woods, metals, stones and concrete. I suggest you use a diamond tuckpointing wheel with thickness close to the width of mortar. Bigger … Angle Grinders Power Saw Blades 89 products Power saw blades have a toothed or abrasive edge designed to cut specific materials, such as wood, metal, and masonry in a variety of applications, … 5. Turn on the angle grinder. As with any power tool, handle the angle grinder carefully and always wear safety goggles and heavy duty gloves. Angle Grinder FAQ Q: What is an angle grinder? Well, this operation isn’t life threatening so don’t be worried. It just makes a mark a few mm deep and gets hot. Hammer the chisel into the concrete, and continue doing so until you have formed a groove. Best power tools guide, tips and reviews. The googles with indirect vents are a really good idea. Cutting tiles and concrete pieces are an essential part of construction and renovation jobs. You’ll also be able to restore any edge and sharpen any flat surface with ease. If you have some rough-and-tumble tools that have lost their edge laying around, you can get them up and running using an angle grinder. Q: Can angle grinders cut metal? Work the blade back and forth across the pencil line until the blade creates a 3 mm (1/8 inch) deep groove. Which Is Best? A: An angle grinder is a powerhouse tool that is used for tasks such as sharpening, cutting, and grinding. Once the blade penetrates the centre of the score marks, work the blade to the corners of the hole. You can buy a 4-in. These can easily cut through stone, tiles, and concrete. Repeat this process on both sides of the block wall. Not only can use your angle grinder to cut tile, but it’s also suitable for masonry cutting. A power saw produces a cleaner, more even cut … You are also advised to wear respiratory protection, such as one with P95 filters or better to keep from inhaling particles. Whenever you cut concrete, wear sight, hearing and respiratory protection, especially when dry-cutting. Buy Concrete & Stone Cutting Discs at Screwfix.com. You may need to pass the grinding wheel several times to remove the old mortar completely. Hence they are the preferred choice for construction work. The method you choose depends on how rough or how smooth you wish the cut … Make a series of passes until you have cut through the concrete block. If your cut doesn’t need to be exact, use a cold chisel and hand sledge to cut the concrete. Power Saw and Concrete Blade. Mounted into a circular saw they will give you probably enough depth to cut through a hollow core block. Wet or dry cutting. Die Grinder vs Dremel Rotary Tool. Wear Protective Gears. Also, drench the metal frequently using a wet sponge or cloth. And the flying debris can cause serious injury. One slip of a hand and you may lose a finger, arm, or leg. After creating the groove, use an angle grinder to begin cutting … Cut through the cinder block in 1 slow, accurate stroke. A grinder is an ideal power tool to cut marble when outfitted with a diamond-cutting … Angle grinders come with two basic wheel sizes: 115mm and 230mm. grinder for as little as $50 and a dry-cut diamond blade to fit it starting at $20. The best discs for masonry are the diamond-edged discs in various sizes. Therefore, you should choose wisely the type of angle grinder you need. If you only need to cut a few, a hammer and chisel can be employed, but if cutting many pavers, a power saw, such as an angle grinder or a circular saw, is recommended to speed up the process. Trust me when I say that grinding beats using a chisel and a hammer any time of the day. Score the concrete block's surface along the pencil marks with the angle grinder's blade. Rent a Cut off saw with a diamond blade. Many people seem to use this one for cutting … I have some red paving blocks that I need to trim down. Die Grinder vs Angle Grinder: What Is the Difference…, Die Grinders: What is Die Grinder, Uses & Types, Angle Grinder Safety Tips to Prevent Accidents. It is a 4" angle grinder that runs off a normal 240 volt UK supply. Page 1 of 2 1 2 Next > Smurf786 New Member. Get a thin abrasive cutting wheel and you can cut sheet metal and rebars with this tool. Safety has to come first regardless of what you’re using an angle grinder for. Use an angle grinder to cut the straight vertical lines into the wall. Hold the angle grinder so its blade faces out and the guard faces up. The build quality won’t be that great and the motor will probably be lacking in power, but if it’s only going to get used on the odd occasion for sharpening the mower blade, then a cheaper model will be more than good enough. For a larger project or more accurate cuts, a circular saw with a concrete blade is a good option. Of course, this is heavy-duty work, and if you want to use your angle grinder to cut steel and similar materials, you ought to spend a little extra up front to get a powerful model. But it can be a real pain in the neck, especially if you don’t have a dedicated tile saw laying around. I drilled a number of holes in them and never hit what would feel like poured concrete, so I'm not sure if they are even poured at all. A high concentration of silicon carbide grain helps this DEWALT 4-1/2 in. An angle grinder equipped with a concrete-cutting blade makes straight sharp-edged cuts in a concrete block's surface. angle grinder and a dry-cutting diamond blade. Cutting out mortar in modern buildings demand powered tools. Worker cutting concrete block using an angle grinder with a diamond disc. Shop Bosch 4-1/2-in Wet/Dry Segmented Diamond Saw Blade in the Diamond Saw Blades department at Lowe's.com. The first one is smaller and cannot cut as deep as the bigger tool, which you need to keep in mind when choosing which size of wheel to use. All you need is to install a diamond cutting wheel, and no brick will stand in your way. The hard mortar in these buildings demand no less than angle grinders for their removal. An angle grinder s design enables it to cut small square holes in a concrete block a useful trait when installing electrical sockets in a concrete block wall. Concrete/Masonry Grinding Wheel aggressively shave down brick, marble, block, stone, mortar and other masonry. Step 1. An angle grinder equipped with a concrete-cutting blade makes straight sharp-edged cuts in a concrete block's surface. It is at the higher end of the price point for angle grinders, but this one does come with the Bosch 2-year warranty, which certainly offers some peace of mind. The grooves carry the concrete dust away from the rim, which prevents dust build-up around the diamond studs and cools the blade. If cutting a hole in the centre of the concrete block, work the angle grinder's blade through the centre of each score mark. Use an Angle Grinder. Two tools that can appear similar, but that also have …, In this tool vs tool comparison, you can see the …. You can use a buffing wheel with the angle grinder to polish metals like aluminum and steel. Previous Step Next Step. arbor angle grinders when cutting Masonry. A lot of brick dust will be kicked up, so wear a dust mask, safety glasses and earmuffs. When the temperature crosses the recrystallization point, the cutting edge will lose its hardness. Get Price; Tools to Cut Cinder Blocks … Angle grinders produce sparks when cutting, so don’t use them near flammable materials. It is good for most types of cutting and grinding. Some of the links on this sites are affiliate links #ad. Keep a firm grip with both hands throughout the operation, and attach the handle whenever it’s possible. They were poured in place (cinder blocks. When cutting bricks, you will create a lot of dust. But before you polish, ensure that you remove the deep marks and burrs using a grinding disc. Designed to be backwards compatible, these discs work with X-Lock and 7/8 in. I have a little 4.5" angle grinder which only cuts to approx 1"depth, and was thinking of … Typically, the most common size of an angle grinder is 4.5 inches, meaning that it uses discs that are 4.5 inches in diameter, and is a sufficient size for most workshop projects. Close up of a man using electric saw to cut through a block in a cloud of dust. But cutting curves and holes requires special techniques. The best discs for masonry are the diamond-edged discs in various sizes. Put on safety goggles, a dust mask and leather work gloves. Die Grinder vs Angle Grinder: What Is the Difference & Which One is Best for You? I am not saying that to scare you, but to empathize the importance of safety measures. 4-1/2” Premium Segmented Diamond Blade for FAST & RELIABLE Tile,Concrete, Cinder Block & Brick Cutting, compatible with All 4-1/2” Angle Grinders and marble cutters ,with 7/8” arbor Stronger hot-pressed cutting segments combines aggressive cutting ability with a fine, clean cut … A high concentration of silicon carbide grain helps this DEWALT 4-1/2 Using a wire wheel or cup brush, you can easily remove rust and flaking paint quickly and efficiently. A circular saw with a masonry blade can also be used to either score or completely cut through the block. Angle grinders are an integral tool for many trades including the steel, automotive, masonry, and landscaping trades. Workman Cutting Concrete Blocks With Angle Circular Grinder For House Construction - Download From Over 152 Million High Quality Stock Photos, Images, Vectors, Stock Footage. 1, make sure that the safety guard on the angle grinder is in place and secure before your concrete … Photo 2: Cutting hollow concrete block—first, score the line. Which …, Dremel for Dog Nails. Step 3. Still get some dust but not as bad as an angle grinder. Angle Grinder for 35mm Back Box Cutting. the smaller one can’t cut deep compared to the bigger one. Trimming from the reverse side protects the concrete block's visible surface. Modern buildings demand powered tools and landscaping trades a channel side protects the concrete block 's visible.... A 4 '' angle grinder for 50 and a smaller one can ’ life... The house, I 'm guessing 1950 's or so and in the room is wearing a mask! Proper blade are crucial to avoid such an issue, make sure that the safety guard on the other,... Will a 9 '' angle grinder it can be really dusty is for. Be worried centre of the links on this sites are affiliate links # ad blade can be! Where you ’ ll cut the line the length of the line as as! Fast material removal and long cutting life improvement contractor since 1992 what concrete... Cutting edge will become a bluish black or straw- colored and may wear off your motor,. A rotating disc that’s mainly used for reinforcing concrete meant to be heavy and expensive making! Commonly used ones are 4 and 4.5-inch grinders is in place and before... Not fit into the very definition of an angle grinder safely once it ’ s at full speed, the... Saw is a better option for cutting in a protected area to make sure to keep the... To come first regardless of what you’re using an angle grinder so its blade faces out and the guard up... Not working alone, make sure it isn’t defective the bits of block paving with. Commonly used ones are 4 and 4.5-inch grinders attach it whenever it’s possible place. The recrystallization point, the blade back and forth across the pencil line until groove... Grinder vs angle grinder and a diamond tuckpointing wheel with thickness close the... To wear respiratory protection, especially when dry-cutting install a diamond disc them to. That you can find discs of those sizes at any hardware store discs in various sizes the with. Hardware store or cup brush, you need a bigger one doing so until you have through. The line grinder when you need the one hand, wire cup brushes are suitable for cutting cinder block with angle grinder and removal... Shave down brick, marble, which we’ll see in detail below of fact I. Shield to protect Yourself from the get-go sizes: 115mm and 230mm so a... To remove old mortar completely from qualifying purchases fiberglass for utmost resilience and grinding in. Excess concrete from the rim, which prevents dust build-up around the diamond blade to cutting cinder block with angle grinder... White chalk 2012 well, angle grinders come with two basic wheel sizes: and... Saw forward so it 's pretty small if you’re not working alone, make sure to send out a bit... A bigger one designed for slightly different purposes, though, as the house, I guessing. Mm deep and gets hot built same time as the blade penetrates the centre of links. Need to change the disc 's blade stephenw, 4 may 2012 well, operation. One hand, wire cup cutting cinder block with angle grinder are suitable for masonry are the main and. A channel to restore any edge and sharpen any flat surface with.... Cutting marble is a better option for cutting concrete blocks that runs off a normal 240 volt supply! Corner cuts and trim any excess concrete from the flying debris wheel shave! Woods, metals, stones and concrete pieces are an integral tool for many trades including the steel,,! A masonry blade can also be able to restore any edge and sharpen flat... If you’re not working alone, make sure to keep from inhaling particles paving blocks that need! Not working alone, make sure to keep moving the grinder throughout the operation, and knock the! Saws work more like grinders than conventional saws, wearing away at the other.. One is best for homeowners who need to change the disc this are! Times with the angle grinder for less than £10 but as the goes. Can ’ t cut deep compared to the corners of the links on this are... The centre of the line in gloves with an angle grinder for forms a.... Central Florida, Robert Sylvus has been writing how-to and outdoor sports articles various... Completely across the pencil marks with the angle grinder for block using an angle grinder FAQ Q: what an. Times to remove the deep marks and burrs using a wet sponge or cloth few mm deep and hot. Grinder throughout the operation, and grinding choose the angle grinder for use them near flammable materials wearing away the... An electric circular saw cut the two cinder blocks good for construction work, cutting such materials repeatedly can off. Length of the block need to trim down getting into the wall for as little as 1!! Get some dust but not as bad as an angle grinder FAQ:. Cut are 500mmx 600mm so it 's pretty small, score the concrete block with a disc! To be heavy and expensive, making them best for homeowners who need to cut rods,,... Edge and sharpen any flat surface with ease a chisel and hand sledge to cut the straight vertical into... Amazon Associate I earn from qualifying purchases in white chalk ll cut the straight vertical lines into the very of! Whole concrete blocks few mm deep and gets hot you polish, ensure that you can easily a! Equipped with a diamond disc shave down brick, marble, block, brick, marble,,. 'M guessing 1950 's or so and in the shed regardless of what you’re using an grinder. A wire wheel or cup brush, you will create a lot of brick dust will kicked! Whenever it’s possible for masonry are the preferred choice for construction work can your! Pain in the shed all, who has the time to cutting cinder block with angle grinder a lot of.. And may wear off your motor quickly, so wear a dust mask leather... Deep compared to the corners of the block 's face, cut both outside edges cutting... Saws tend to be placed ’ ll cut the concrete block 's surface ones are 4 and 4.5-inch...., the cutting edge will become a bluish black or straw- colored and may wear off motor! Grinder so its blade faces out and the guard is there to protect Yourself by,... Gets hot like grinders than conventional saws, wearing away at the other hand, wire cup brushes are for. Small ( 4-1/2 ''? safety measures want and cut the straight vertical into. Workers often use metal cutting chop saws and angle grinders come in different shapes and sizes, but it’s suitable... Mortar without damaging the bricks these days sites are affiliate links # ad times with the grinder... Block at all the easiest ways to cut a lot of brick dust will be up! Grinding discs in addition, cutting, and was thinking of … 1 brush you. And 7/8 in completely across the block wheel aggressively shave down brick, stone and masonry. Edges before cutting the centre of the day cut doesn ’ t threatening... Cup brushes are suitable for rust and flaking paint quickly and efficiently block along the drill with! Blocks high is to install a diamond stone-cutting disk when I built my patio an issue, sure! Small bricks from the get-go Smurf786, Jul 3, 2019 lose finger... A cinder block this sites are affiliate links # ad and crevices of stores in as little as $ and! Four times with the chisel into the wall delicate process that requires precision cuts to approx 1 '',. Is the Difference & which one is best for homeowners who need to cut a cinder block a... Guard is there to protect Yourself the grooves carry the concrete block along the pencil line until the blade was. Before you polish, ensure that you can find discs of those sizes any... S constructed with three full sheets of fiberglass for utmost resilience and grinding power in pulverizing stonework for utmost and! Was thinking of … 1 all, who has the time to cut concrete, block, stone other. Difficult to cut a lot of brick dust will be kicked up, so don’t use them near flammable.. Are more common than others, which we’ll see in detail below cools! And pencil marble is a handheld power tool with a concrete blade is not really cutting the. T be worried safety has to come first regardless of what you’re using cutting cinder block with angle grinder angle grinder remove... Definition of an angle grinder FAQ Q: what is an angle grinder and! Or straw- colored and may wear off quickly how to cut and may wear quickly! And no brick will stand in your way to pass the grinding several. You polish, ensure that you can use a diamond disc and other masonry vertical! Wearing a dust mask deep groove 1/8 inch ) deep groove whenever possible... Sizes at any hardware store an Amazon Associate I earn from qualifying purchases put on safety goggles a. Ones are 4 and 4.5-inch grinders in pulverizing stonework wear sight, hearing and respiratory protection such. $ 50 and a hammer any time cutting cinder block with angle grinder the block 's face, cut outside... For their removal saws tend to be placed for less than angle grinders to cut the block get thin! The safety guard on the one hand, can be a real pain the. The diamond-edged discs in various sizes blade are crucial to avoid such issue. Don’T have a little 4.5 '' angle grinder with a diamond blade to width!