Proper care and maintenance of your angle grinder will increase its lifespan, prevent it from breaking down and ensure that it always performs well. There are a few simple things you can do:

Restart protection that prevents the tool from restarting if it has overheated or has cut out and been left on. Angle grinders are powerful tools that are dangerous if appropriate care isn’t taken. Most angle grinders have built-in safety features, but they vary by model. If you need something slightly more compact, the Makita GA9050 230mm Angle Grinder will deliver. It offers a 230 mm wheel diameter, with a 22 mm bore diameter. This machine is double insulated for added safety and features 6,600 RPM enabling you to handle every project with ease. It is also a relatively light angle grinder at only 4.7 kg, making it comfortable to handle for long durations. The no-slip grip helps to reduce the risk of injury and potential harm or damage to your work. The most important factor is the type of tasks you'll be using it for. This will influence the size of the angle grinder you buy, its power rating, how portable it is and how easy it is to manoeuvre. For example, a big angle grinder takes bigger discs to make deeper cuts than a smaller one. A high-powered angle grinder is needed for working on dense materials. And it's easier to work up a ladder with a cordless angle grinder than a corded one. This feature is essential if you plan to use your angle grinder for prolonged periods. It helps to cool the engine down and prevent it from overheating.Makita offer compact angle grinders that are small and convenient, helping you to smooth and grind down surfaces with ease. These tools feature a small circumference, so you can use them in tiny spaces, while being light enough that they are easy to handle. This LED light lights up to indicate that the angle grinder is overheating or if the circuit breaker is triggered. The power source and amp or wattage of angle grinder you need will depend on the tasks you are doing, how regularly you'll use it, and whether it's for occasional, regular, small scale, or professional use. As a guide, opt for a battery-powered angle grinder if portability is important or a corded one for prolonged use. An angle grinder with a power rating of 500-900W is suitable for occasional household use, 700-1200W is ideal for regular small-scale tasks, 2000W is best for large-scale regular jobs, and 2500W is best for professional use. You can cut granite to a depth of 30mm with a 115mm angle grinder or 70mm with a 230mm angle grinder using a diamond blade. A disc guard that prevents you from touching the side of the disc that isn't being used to cut or grind.

A paddle switch (also called a dead man's switch) stops the angle grinder from rotating if it isn't held with two hands.You can cut concrete to a depth of 30mm with a 115mm angle grinder, 38mm with a 125mm angle grinder or 70mm with a 230mm angle grinder. The best disc to use is a diamond blade, but you can also use a cutting disc. The power rating of an angle grinder is indicated by its wattage, and the wattage reflects the size of the disc it takes and how fast the disc rotates. Angle grinders are available with power ranges from 500-2500W and disc speeds of between 5,000-11,000 revolutions per minute (rpm). To decide on the best power rating for your needs, consider how regularly you’ll use it and whether it’s for occasional, regular, small scale or professional use. Another type of corded angle grinder is an air angle grinder. Instead of being plugged into the electricity, it's connected to an air compressor unit and works using air pressure. They are the lightest angle grinders available and are favoured by metalworkers as they are safe to use when moisture is present. They also have an instant start and stop function.

This feature reduces the amount of vibration felt through the handle to increase comfort, especially if it will be used for long periods. Corded angle grinders plug into the mains electricity supply to work. This gives them unlimited running time and consistent power. They also tend to be lighter than cordless models and cheaper to buy. However, the cord means you need to be near a power supply to use them, so manoeuvrability and portability are hindered. Finally, consider how often you'll use the angle grinder. If it's for infrequent DIY use, you probably won't need as much power as a tradesperson who will use the tool frequently. And if you're a tradesperson, durability will be more important. Of course, your budget is also something to consider. Cordless angle grinders are powered through a rechargeable battery. This makes them ideal to use where there's no power supply or when working up a ladder or on scaffolding. And there's no cord to get in the way while you work. On the downside, their battery capacity limits their run time, and they are more expensive and heavier than corded models.The size of the angle grinder you need will depend on the task you are doing, how regularly you'll use it, and whether it's for occasional, regular, small scale, or professional use. As a guide, use a 115mm angle grinder for precision and finishing work or occasional household use. Use a 125mm angle grinder for regular small-scale tasks and a 230mm angle grinder for large-scale regular work or professional use. You can cut aluminium to a depth of 30mm with a 115mm angle grinder, 38mm with a 125mm angle grinder or 70mm with a 230mm angle grinder using a cutting disc. Or you can use a diamond blade, but only with a 115mm angle grinder.