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Back in the day when I used to put up vinyl siding, I found that the best way to cut it with a circular saw was with a cheap 140 tooth plywood blade installed backwards (to give the teeth a negative rake and prevent chipping): For really hard plastics, I've used a diamond abrasive blade before and that did a great job (these are incredibly expensive if ...


1

I have a 7 1/4 inch circular blade which is specifically for laminates and plastics. When cutting flooring, I wasn't so impressed with its performance at first but when I tried standard crosscut and ripping blades I was then very impressed. The standard wood working blades got gummed up and melted or fractured the laminate while lugging and jamming the saw ...


24

"Dirt", really soil, is made up of components that varies by locale, but almost always contains a significant amount of silica and other silicates, in the form of sand or finely ground quartz. It also contains other hard minerals in addition to softer organic materials. Silica and silicates are the same materials that are used in abrasives, such as ...



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