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Best Jigsaw and Circ saw blades for MDF?


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luckydevil 
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Posted: March 25, 2006 at 7:27 PM / IP Logged  
Just curious what you guys prefer in the way of jigsaw and circular saw blades for cutting MDF?
dwarren 
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Posted: March 25, 2006 at 7:45 PM / IP Logged  

For jigsaw blades I think I use the rough or fast cut blades, and what ever came with my circular saw works fine.

MDF dulls blades fast so I genrerally buy the cheapest blades and do a little sanding to finish off the project.

supradude 
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Posted: March 25, 2006 at 8:47 PM / IP Logged  
I usually buy the Black & Decker carbide tipped blades. They seem to cut quicker and last longer than any of the other types.
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luckydevil 
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Posted: March 25, 2006 at 10:07 PM / IP Logged  
I've heard that for MDF, the more teeth on the circular saw blade the better, is that true?
stevdart 
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Posted: March 26, 2006 at 1:42 AM / IP Logged  

If you're buying a new blade for the purpose, I would suggest the 40-tooth fine blade.  But either 40- or 24-tooth will do the job.  The keys are to use carbide-tipped blades and set the depth so that the blade barely passes through the thickness of the wood (blade depth set to 3/4+ instead of 1 1/4").  You want the teeth cutting wood at that point, and not entirely out of the wood.  This provides for the smoothest cut.  Cut through slowly enough that you don't get a lot of burn marks on the wood. 

Best Jigsaw and Circ saw blades for MDF? -- posted image.

For a jigsaw, a combination or fine wood blade.  Also, look for expansion grooves built into the circular saw blade.  Don't buy a cheap blade that doesn't have these.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

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