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It cuts much quicker that the electric nibblers I have seen used, and produces a cleaner cut edge. Purchased this blade to cut steel (Tin) roofing panels typically used here in Hawaii. This is the 7-1/4 diameter blade I use in a standard framing carpenters circular saw. The blade DOES still spit hot steel chips out, especially when the blade starts to cut through a flat (tangent to the blade tips) section of panel, but works well through regular (perpendicular) cuts through the panels.I can still recommend this blade, but it is not the fantastic "end all" blade that is shown in the morse video.It still tends to emit sparks (although cooler and reduced quantities of incandescent chips). This blade does cut the metal, and tends to run cooler than other carbide tip saw blades.
I used this blade to cun Pro Panel style roofing material we were able to cut 4-6 pcs at a time and it was like cutting 1/4 " plywood .I highly reccomend this product.
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