Which angle grinder?

Looking for one to cut a few (not many) relatively thin concrete slabs. Never used or owned one before, so don't know what to look for. I thought that a 4.5" would be ok (will it?), and just buy a big pack of stone cutting disks from Screwfix - they look cheap enough.

The ones below seem ok to me. Any recommendation? I suspect that once this job is done I will not be using it for more than a couple of times a year.

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?cId=100368&ts=65546&id=87881Any tip will be much appreciated.

Reply to
JoeJoe
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Either the Bosch or the DeWalt would be good in this small size. I have something similar to the Bosch one and it has been fine.

However, I don't think that this is going to have enough cutting depth for paving slabs - even thin ones, and will struggle anyway.

Really you need a 230mm one.

I researched these because I had a need for one a few months ago. Bosch and Metabo had the best reviews and the antivibration handles make a big difference in use.

In the end I settled on the Metabo because it came with a couple of good quality cutting disks. Prices were about the same at around £79 at the time. I got mine from Lawson HIS because of best price but it does vary.

If you feel that your usage rate doesn't make this worth it, then I would look at the rental places - cost is about £12 a day.

Reply to
Andy Hall

For occasional use, you can buy a cheap one that will do the job for what it will cost to rent one.

For stone cutting make sure you have a good mask and goggles as it can make one hell of a mess, depending on the stone.

Reply to
Geoff

An watch out for the kick-back. It can take your leg off!!!

Alan

Reply to
AlanC

230mm? 2000W? £12?

.. and gloves.

Reply to
Andy Hall

OP IIRC only wanted to cut a thin stone so a 4" would do.

Only needed if putting a 9" disk in a 4" grinder :-))

Reply to
Geoff

Forget the stone cutting discs and go for a diamond blade. Faster cut, less dust, and one will cut hundreds of slabs. With a big slab and ordinary abrasive disks you may need more that one per slab!

Everything you need to know on cutting slabs:

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can get diamond discs from eBay for peanuts)

About angle grinders:

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about discs for them:

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The ones below seem ok to me. Any recommendation? I suspect that once this

With thin slabs you may be able to use a small grinder by making a partial cut and then snapping the slab. If you want to make a full cut (which sometimes you need to do on corners or notches etc) then a 230mm machine is required.

If you want a "one off" tool, then even one of the cheapies will do (although avoid the lowest of the low like Kinso (google this group to see why!)). A £15 quid machine will see out 20 slabs.

ergonomics as well, easy to use single handed when required. Will survive being chocked up with masonry dust much better than the budget tools.

Bosch have the edge on grinders (over DeWalt) anyway.

Treat with respect - they can bite! Use a mask and face shield (the visor type is good), plus ear defenders.

If you use a 230mm grinder then spend a bit more a slightly better machine and hang on tight. I have had many years faithful service from a

2kW Hitachi grinder that came with a diamond disc. Cost about £75 IIRC.
Reply to
John Rumm

How thin is thin though....

Ordinary paving slabs? I believe they are too thick. Plus a £12 angle grinder? It would be an idea to add a fire extinguisher to the list

Floor tiles? Not really the right tool

That would be a challenge....

Reply to
Andy Hall

Thanks all for the advice. Just ordered a Ryobi 9" + 230mm diamond disc from toolstation.

Reply to
JoeJoe

Good luck with it. I found slab cutting surprisingly easy with a grinder. There's little danger of kick back because the material you're cutting is rigid and the cut can't close up as it might with wood. Following a line can be tricky, and it pays to set up some kind of base to rest the slabs on. I used a couple of lengths of 4" x 4" with a bag of sand for the offcut to fall on. Dust is the main problem. Warn the neighbours not to put the washing out that day.

Reply to
Stuart Noble

A useful tip I have found is to make the first pass with the grinder starting at the edge of the slab nearest you, and moving away. That way the stream of dust from the cut is not obscuring your cut line.

If you need help getting a straight line then an old ali level makes a suitable straight edge to guide the blade.

Reply to
John Rumm

IIRC I found it slightly difficult to see the cut because of the guard. Had I been doing a lot I might have worked out a more comfortable working position

Reply to
Stuart Noble

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