Diamond blades with 600W "115mm/4.5"" angle g

[richard7761]

I want to cut a doorway into a half-brick wall. I have to hand a Draper 600W angle grinder that takes 155mm blades, bore 22.2mm (22mm). No-load speed 11000RPM.

Instead of trying to use a non-diamond blade I though I might do much better with a diamond blade.

I looked at Spectrum TX10R, but I think max speed is 4500RPM.

Actually, not so easy to discover the max speed ratings of diamond blades.

Anyway, I'm still looking for a decent diamond blade that would work with my angle grinder. Or, will I need a slower grinder? Thanks.

 

[richard7761]

Actually I think the Marcrist BF750 1126.0115.22 115mm Diamond Blade is meant to be better than Spectrum TX10R.

I think any 115mm blade with EN13236 standard is meant to stand 80 metres/sec max or 13300RPM.

So, Spectrum TX10R would do, I reckon, but Marcrist BF750 better.

 

[swbjackson]

With a small grinder like that you won't cut all the way through, even on a half brick wall. You'll likely kill the grinder as well because the cooling air intake needs to be in a different place to cut masonry.

 

[richard7761]

With a small grinder like that you won't cut all the way through, even on a half brick wall. You'll likely kill the grinder as well because the cooling air intake needs to be in a different place to cut masonry.

Yes, you are correct. I think I might get a 35mm cut which if I do the back as well, adds up to 70mm. I'd have to chisel the 30mm remaing, and hope I get a fairly neat break.

It's just regular brick. I may have to be really careful to prevent overheating. I've bought the Marcrist BF750 blade, so I guess I'm locked into seeing what I can do with that.

I should really buy new a grinder, but trying to save money.

 

[joe-90]

You could have got a cheapo 9" grinder and blade for that price.

 

[richard7761]

You could have got a cheapo 9" grinder and blade for that price.

I paid £17.45 which includes postage.

 

[joe-90]

But it's still the wrong tool for the job. Even the 9 inch is too small. You should go to the hire shop. BTW lot's of copies around. Not off Ebay is it?

 

[richard7761]

But it's still the wrong tool for the job. Even the 9 inch is too small. You should go to the hire shop. BTW lot's of copies around. Not off Ebay is it?

Yes, I did buy from Ebay:

http://www.ebay.co.uk/itm/Marcrist-...t=UK_Hand_Tools_Equipment&hash=item19c451d500

But, it does not have the blue line.

One I've got is like this:

http://www.ebay.co.uk/itm/Marcrist-...Home_Garden_PowerTools_SM&hash=item4d024f71d1

 

[r896neo]

Marcist are far superior blades to spectrum in my experience of using both a lot.

Of course the spectrums are almost half the price but are much slower and don;t last as long.

Any cheap diamon blade will do but cutting a wall you need a stihl saw which has a clutch and is much safer. Also a ts400 will cut 95% of the way through a 4inch wall from one side

 

[richard7761]

Marcist are far superior blades to spectrum in my experience of using both a lot.

Of course the spectrums are almost half the price but are much slower and don;t last as long.

Any cheap diamon blade will do but cutting a wall you need a stihl saw which has a clutch and is much safer. Also a ts400 will cut 95% of the way through a 4inch wall from one side

Yes. I see why folks tend to hire tools when cutting through walls.

With petrol tools, must get good ventilation.

 

[Deleted member 174758]

If I'm hiring tools I prefer these to Stihllys - no petrol fumes and much, much less dust. Won't groove a floor for sinking pipes like a Stihl saw, though