Looking for some recommendations for a cement board blade. I have a ton of ripping and cross cuts to do for a project so I’m thinking I want to buy the diamond blade. Because I have such a large amount to rip, I’m looking for a quality blade that will last a long time. I’m also in need of a jig saw blade for those inside cuts around windows and such. Suggestions?
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use a small right angle grinder with a diamond blade from any box store. No jig saw necessary. Spend your money on a good respirator
diablo makes a pretty good blade for the $$. shears are a prefereable option when cutting that stuff though. if you have that much to cut, the expense of the shears will be well worth it.
as to numbnuts suggestions, ill just paste something off james hardies web site so he doesnt flip his lid and starts with a semantics argument that will only benefit his ego.
"WARNING WARNING The HardieBlade® saw blade is specifically designed to cut fiber cement products while minimizing the amount of respirable silica dust. Never use continuous-edge diamond blades, abrasive discs, or high tooth count circular saw blades when cutting James Hardie siding products. ONLY blades with the HardieBlade saw blade trademark should be used when cutting."
Don't use a blade at all. The dust from cement board is terrible and will be everywhere. I have a crew that installs Hardi alll day, every daya and we don't even have a Hardi saw on site. Shears do a fine job and don't create the dust that blade will. Obviously a grinder and diamond blade are even worse.
Shears
I'll second what Mark and florida said. Get some shears!
KK
You said cement board so I'll assume the fully rigid board as used under tile installations? Vs. hardi type siding?
Hardi siding - I did a whole house with just a box cutter and one blade. Score and snap over an edge. No fuss, no muss, lots faster than shears. Curved cuts score with cheap HF diamond blade in angle grinder. one can layout any wall with no need for butt joint other than the mfg ends.
The cement board I've used under tile could not be cut with a shear and 4 ft lengths extremely difficult to score and snap cleanly (aka lose 1/2 of your boards!). Only ever had to do about a 200 ft of cut on 1/4" board at a time, used a couple of old 10" carbide blades in an old table saw - outside in a breeze, used HF cheap $20 diamond blade for cuts that needed to be more accurate. About 100 ft of cuts and every entire carbide tip is GONE, new another old blade then.