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Blades are normally interchangeable. The QR nuts are useful, so I'd buy one of those too.
I've never used a battery powered one, but even corded 4½" ones are fairly weighty. I haven't found a cord a hassle so far.
I got a makita one with a box on a deal which I'm happy with*. But if it's only occasional use (like mine) I'm not sure it's one of those items that you'd really feel loads of difference between cheap and expensive ones.
*bar the "always on" function of the power button requiring a knack to use
Edit this one now a bit more £s, but still a fair price:
Makita GA4530RKD Angle Grinder Slide Switch, 115 mm, 720 W https://amzn.eu/d/bQzvV3H
Available cheaper elsewhere without the box -
Unless you have high capacity batteries (5 or 6ah on an 18v tool) you’ll just be changing and charging batteries constantly. And even with big batteries you’ll go through them quickly cutting slabs.
Pretty much all grinders use the same kind of discs Apart from the new and expensive x lock ones.
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Einhell angle grinders are quite good valve, they’re not the best, but if they go wrong, tool station or whatever normally just replace them on the spot. Where as with more expensive grinders they send them back to the manufacturer to be repaired/replaced.
Having said that I’ve had my Bosch grinder for over 15years and it’s still going strong. -
Most 115mm corded angle grinders use the same nut and blade fitting ID so pretty interchangeable.
Have two, a cheapo £30 cable job that I've had 10 years, changed the joke 2m cable for a 10m industrial quality cable and use high quality blades, only gets occasional use, but paid for itself on day 1.
Have a milwaukee brushless m18 battery job, more like £100-135 something like that? Sounds like a lot, but again paid for itself on day 1 doing a job for a customer removing a few dozen mangled bikes and abandoned locks at normal charge out rate. Been using it on all sort of masonry jobs, batteries last surprisingly long and its much easier to control without it stalling/running away like the mains powered job does (1600w, but shows the difference between high amp stall capacity of a quality battery tool vs cheap mains).Screwfix/b+Q own brand stuff is fine for most folks DIY needs in the world of angle grinders. Just buy good blades and buy some £££ goggles that properly fit, those £2 goggles... your eyesight is worth more than that.
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@aggi
I'm pondering getting a cheapo angle grinder. Got a few paving slabs that need cutting and I need to add some channels to some window sills and a few other minor things.
What's the advantage of a mains powered one over something like a Ryobi (I already have ryobi batteries)? I'm not going to be spending loads of time cutting in one go.
Are blades interchangeable between models/brands or do you need to get specific ones? Anything else to look out for or should I just get a Titan one or whatever?