I own these blades, have not tried these blades on composite decking. I will observe that composite decking - or any high density plastic material - dulls blades faster than wood. Carbide teeth are both a blessing and a curse. Carbide keeps it's edge longer, but requires specific hard sharpening stones to resharpen. Whereas standard steel dulls quicker, but can be resharpened using standard sharpening methods. Finally, steel will resharpen more times than carbide. If you have a sharpening service nearby, you can get blades resharpened from $5 to $30, depending on the number of teeth and the urgency to get them back. Some contractors do not resharpen carbide blades - they throw them away. This is based on the theory it's easier to buy new than to get things serviced. Or there is no competent service provider nearby. I know I did not answer your question, but I may have given you some insight into how to think about what tobuy.
Yes, this can be used on a Dewalt miter saw.
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Not what his blade is for. Mentions several types of wood but no metal. I’d get a blade specifically made for cutting metal.
In my experience with these blade I would say no. To cut melamine you need a better quality carbide and cut angle.
Yes, they work on both table and miter saws. They make a pretty clean cut. Just make sure you have the sheet the right way up.
yes fine tooth blades work best
Yes works fine
Wr use this on a Rigid miter saw
The kerf thickness is just over 1/16th of an inch.