Top Angle Grinders On The Market
If they are not careful Professionals and DIYers tend to have a tool box of tools, but regularly use only a small number of them. The angle grinder is one such. While the basic use of an angle grinder is for grinding and polishing, the availability of attachments and alternative power sources has increased their use in a variety of circumstances.
They can now be used for cutting and sanding as well as grinding and polishing. They are now battery or mains driven, and even compressed air or petrol powered for major construction work.
Simply put, a hand-held angle grinder consists of a handle and motor design that rotates a spinning disc. Good angle grinders are adjustable in both speed and direction.
A variety of spinning discs are available for specific functions and different surfaces, for working with stone or metal for example.
Some considerations to bear in mind when considering buying an angle grinder:
Angle grinders come in different degrees of power or disk speed, usually expressed as revolutions per minute, RPM. Manufacturers usually specify the optimum combination of power and RPM for best results.
The other thing to look for is wattage, which defines the power. Smaller grinders suitable for small DIY jobs can be as low as 4 watts, while the very largest professional heavy duty models can go up to 15 watts.
As noted above, there are a variety of power sources for angle grinders, battery, mains and petrol.
Battery, look for the battery life, and if a spare battery and charging cradle is part of the deal. A second battery that can be charging while you work is great, but you must be able to buy a second compatible one.
Mains powered will need a cable to connect to the mains, perhaps using an extension cable. You can bet your bottom dollar that the cable will get in the way.
Petrol, really only for the big jobs. It will probably be a two-stroke engine and you will need to learn how to make up the two stroke mixture. Another consideration is the additional noise of the petrol engine.
Compressed Air. Obviously you will need a compressed air source, usually compressed air bottles or a compressor for the big jobs. Bottles, like batteries run out and need recharged. If you use a compressor, this will add considerably to the cost if you don’t already have one. It will add to the noise as well.
- Attachments and accessories
Angle grinders started out being used principally for smoothing and polishing, they have now stepped out into other areas.
The most common accessories are replacement and additional discs. Replacement for existing discs and additional for different surfaces and quality of work on those surfaces. Like sandpaper, rough discs can be used for initial wearing down, and fine discs used for smoothing and polishing.
Other accessories include some for dust extraction. An angle grinder can generate a lot of dust, and being able to add a dust extractor wheel guard or extraction flange can make a great difference to the work environment.
You can even find an attachment for a rotary cutter.
From a safety viewpoint a grinding safety wheel guard could save operator damage.
As with most power tools, safety is a concern. The angle grinder needs to meet all relevant safety certifications. Because of the different characteristics of different materials, you need to understand what you are working on. Some have fine dust, some large lumps, and some materials can tend to crumble or break up and fly around the room if treated wrongly. Using a cutting disc to grind will usually mean the work shattering.
You might need a full-face safety helmet, eye protectors or a visor, certainly gloves and perhaps ear defenders.
- Carry Case
By the time you have the angle grinder itself and the bits and pieces that go with it, it is a lot to lug around and store without losing anything. A plastic bag doesn’t quite cut it for business credibility, so a carry case it a great thing to have in the purchase package. .
Here are three angle grinders you might want to consider.
This is a cordless, battery powered unit from Amazon. It has a great range of goodies in the box and has the following specifications:
- Package Contents:
- A NoCry 20V cordless angle grinder,
- 2x 115mm protective guard shields (1x open and 1x closed),
- 3x 115mm disc wheels (1x cutting, 1x grinding, 1x diamond),
- An adjustable handle,
- A nut wrench,
- One 20V 4.0 Ah rechargeable lithium-ion battery,
- A 20V fast charger
- A carrying case
- Max RPM at no-load: 10,000 rpm (brushed motor)
- Spindle (arbor) thread diameter: M14
- Max disk size: 115mm
- Compatible batteries: NoCry 20V 1.5, 3.0 and 4.0 Ah Li-Ion batteries
- Compatible charger: NoCry 20V Fast Charger (220-240V AC, 50 Hz)
- Total weight: 2.24 kg (with battery attached)
As you can see, a comprehensive set of stuff. One gripe is that a second battery would be a very useful addition. They can be bought at Amazon, so it might be an idea to buy one when buying the angle grinder.
User reports are generally very positive for both the angle grinder and the NoCry company.
Makita are one of the foremost world-wide manufacturers of all sorts of power tools. They have a great reputation for quality.
The angle grinder uses the proprietary soft start trigger technology giving the user full control at all times. The soft startup feeds power just when it’s required for safe easy start ups.
The motor is a fan cooled 2000W motor with dust sealed bearings. It also sports replaceable carbon brushes, a lightweight gearbox housing and 3 position side handle. The gear housing can be rotated through 90 degrees. Be aware that this is a very powerful beast with a big kick-back if it gets stuck. Its also very heavy at 7 Kg.
It’s aimed more at the professional user, but could also be an option for the keen DIY enthusiast.
The box Contains
- 1 x Makita GA9020S Grinder
- 1 x Lock nut wrench
- 1 x Side handle
Optional extras include a dust collecting wheel guard.
User opinion is very favourable.
This corded mains-drive angle grinder is a sturdy reliable 115mm unit running from a 1010 Watt motor. One differentiating feature is around safety, that it won’t restart by itself by accident. The power switch must be reset when you want to start up again.
- The slim ergonomic small design allows easier access to confined spaces
- Guards can be fitted adjusted and removed without tools
- There is an anti-lock flange stops you looking the disc in place
- The side-positioned spindle lock protects the power button in tight spaces.
The box contains the angle grinder only.
Users are generally favourable, but one big gripe is that the purchase kit does not include any discs. Some other users complained that the carry case was not of any great quality and that the closing clips failed very quickly.
The angle grinder you choose rather depends on the use you intend to make of it, but the Makita at the current knock-down offer is very hard to beat. If you are prudent and don’t consider promotional pricing or “special offers”, then the NoCry takes the biscuit.
For one-off DIY exercises the De Walt will fit the bill, though having said that you will need to buy some discs, which will bring the cost within firing range of the NoCry.
Our recommendation, ignoring specials is that the NoCry is the preferred option.