Most advice given here recently has been for dry work and 230mm discs.
My 2 stroke stone saw is about due for a new blade and I wondered if anyone has a recommendation or comments about something suitable for wet cutting?
I have rather a lot of concrete blocks to lay.
regards
No idea whether it's a good one or a good price, but Screwfix have the DeWalt DT3765 reduced from =A3125 to =A355 in their clearance section.
A
discs.
Tim,
18 months ago I bought a bulk lot of 10 on ebay - they are "Blue Spot" "Pro Series" "Professional" stock code 19533 - as is the way with these things I was somewhat sceptical hence buying 10 rather than one, however despite very heavy usage chopping up concrete slabs and blocks I've still only used 3 off them! I think they were supposed for dry use, but I've used them both dry and wet and they've performed very well.AWEM
In message , Andrew Mawson writes
Hmm.. Disc prices seem to vary between 15 and 150ukp!
Manufacturers claims seem to centre around hardness of material to be cut. I.e. insulating block to seasoned, flint based concrete.
Nobody mentions wet cutting.
regards
Mine came from :
AWEM
In message , Andrew Mawson writes
Must have been a temporary line. They are only offering concrete grinding discs at the moment.
Plenty of stuff on e-bay.
Lots say dry use so perhaps one could conclude the others are OK in the wet:-)
regards
Mawson
230mmwondered
suitable
Mine say dry use, but are absolutely fine in the wet. They don't say only dry use.
AWEM
The distinction is the ability to withstand the heat of dry cutting.
The soft/hard materials thing is all about the matrix the diamonds are embedded in - in hard materials, they wear down fast so the metal matrix needs to be softer so it wears away and exposes fresh diamonds. In soft materials, a soft matrix would be a waste of (still) good diamonds.
In message , Bolted writes
yebbut, they don't tell you about the matrix. Sometimes they mention laser welding. What is the significance of that?
regards
Dunno what that is implying - apart from sounding whizzo - maybe it's just saying that cheap electro-plated crap.
I think that must be what it means. I am getting some worktops cut from stainless plate, and have been nosing around various laser/hi def plasma/water jet cutters lately, and a couple of the laser places have mentioned welding diamond blades. I guess it makes sense, it would have to be CNC, and as my shallow understanding goes the laser allows very narrow but very penetrative welds.
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