Hi,
I am going to be cutting through a masonary wall with a 12″ portable cut-off saw. The abrasive blades are about $8, while the diamond bladea are about $150. My question is, which blade should I purchase? I gather I’ll need a few abrasive blades for my job if I go that route. However, even if have to buy 4 abrasive blades it will still be much much cheaper than the diamond blade.
Is there any reason I would still be better off buying and using a diamond blade for the job? Would the diamond blade be much quicker? Any difference in the amount of dust?
Help please….this is the first time I’ve used cut through masonary before.
Thanks in advance.
Bill
Replies
I'm not familiar with an "abrasive" blade that would do much cutting through masonry. They wear so fast that your 12" blade would be a 6" blade before you've accomplished much.
What you might consider is going to an equipment rental yard and renting a diamond blade for your saw.
The rental blades have a measurable life and the rental yard I use once gave me a 14" blade for my saw because it was too worn for rental.....but I got quite a bit of use out of it before it was completely shot.
Edited 6/3/2006 1:59 am by Notchman
Go diamond, for what you have to cut, your going to go thru the abrasive. Do not rent they charge for the wear per thousands. Trust me you are going to be miles ahead buying a diamond. And yes they cut faster. Dusty either way, set a fan to blow dust away. Keep in mind a 12" saw is only going to get you approx. a little less than 6" more than likely 5-5-1/2" of depth of cut, depending on the width of washer that supplied, that stablizes blade.
So you will either move inside to finish cut, or have to blow out the chunk, with chance of inside not looking real good. Might not be a issue. Or make all the cut as deep as you can from outside and drill series of holes around perimeter. move inside and score line and then bust out. If dust is not issue on inside cut away.
I've bought all my diamond blades right from manufacters and cut out middle man.
Diamond without question. But back up for a second and tell me about what kind of wall this is. Is it a poured fondation wall? If so how thick, and what size cut are you talking?
Diamond... but don't pay $150 go on ebay and get one for under $50...
p
Ditto that. Bought a 12" blade on e-bay at just under the "buy it now" price. It's cut at least 100 running feet of cast concrete along with lots of brick, block and asphalt concrete. It still has plenty of wear to go. The Chinese have diamond blades down pretty well, and seem to make half decent tungsten carbide, but I still wouldn't buy their high speed steel or toolsteel tools.
"even if have to buy 4 abrasive blades'
Keep adding zeros after the 4.
the diamaond will take cmaybe a hour, the abrasive , two days and twenty blade plust 300% more dust. with diamond you can use water as a lubicate and dust wont be that bad.
Amen!
That four was just to score the cut!!!
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Look for a better deal on the diamond blade. I can get a 7-1/2" for about $8, and I think the 14" was only $30. They also have 4", 5-1/2" & 10" if I remember correctly (don't think they had 12")
This is at a local discount tool place - think Harbor Freight, Chinese made products.
I used to work in the diamond tooling industry, and between my own observations and discussions with manufacturers still in the business, these Chinese-made diamond tools seem to be as good as stuff made here.
Don
dust shouldn't be in the discussion. for a cut like that, you need water.
Diamond will cut 40 to 100 times as much as an abrasive blade, and more safely. The abrasive blade can explode and throw fragments of schrapnel.
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