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Concrete cutting saw blades
Ken, pretending to be EW,
Are composite concrete cutting blades worthless?
Looking at their suggested blade for the job on their site I do not see where they recommended the Abrasive Wheel, only the diamond wheels. Did see where they said "super-fast". Of course compared to what? Then the diamond wheel is for "high-speed cutting". So, super is slower than high speed? Not sure which policitial speech writer did the wording.  kt
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Concrete cutting saw blades
Here 'ya go. This site shows the abrasive wheel applications.
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Concrete cutting saw blades
Kenny, are the abrasive blades worthless? Depends on who you talk to I suppose. I have a bunch I keep on hand just in case I wipe out an expensive diamond blade. Ten years ago a good 16" diamond blade was upwards of $600 or more. Now you can buy a cheapy for about $50-$125 on eBay. I did buy two gently used high-quality ones for $35 each off eBay and am still using them. The cheap ones are good for about 5 hours while the good ones are about 3-10 times that or more. Abrasives are about $6-15 each---but you can't consistently cut at depth as it is continually wearing out. You might start out cutting 4" deep at one of a 3-4 foot long cut and end up at zero depth.
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Concrete cutting saw blades
Ken, below is the link I looked at.
EW, have used the abrasive blades myself and for my little bit of work done fine with them. But I don't play the concrete guy that Ken does. The question on them being worthless was one asked by Ken to begin with. Found them to be only way to cut rebar (with a saw). kt
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Concrete cutting saw blades
Kenny: Bolt cutters or a rebar cutter is much quicker and quieter.
Murf: Did I read your post right about using abrasive blades wet? Unless I was using the wrong kind, I tried water and it took just as long if not longer.
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Concrete cutting saw blades
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Kenny: Bolt cutters or a rebar cutter is much quicker and quieter.
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Point well taken but I have learned over the years there are many tools often you can use. The best tool for the job is the one that does it which I already have. Guess that is why Lowes seldom sees me. Yep, I have bought a tool for a job, back in the days when I was allowed to keep some profits by DC. kt
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Concrete cutting saw blades
I just had my first experience cutting 2" tumbled bluestone that I laid down for my front walk. My expensive cedar walk rotted out in 12 tears due to dampness. I bought a $50 diamond blade from home depot and used my cheap skil circular saw. I was amazed. I layed most of the stone without cutting. But I dry cut maybe 15 total feet of the 2" stone to fix the rough spots. It cut very easily at first , became a chore as I was finishing up.
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10-28-2008, 14:39 
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