A good choice for cutting several types of materials, including metal, stainless, wood, plastic and PVC. As always, the key to a long lasting blade is in keeping the blade as cool as possible during the cut using either water, cutting fluid or oil. If you’re making a deep cut, backing the saw out of the cut to clear the chips will keep the friction and heat to a minimum. We stock hole saws from 3 inch up to 12 inches! Do you need a 7 inch hole saw? 8-1/2 inch hole saw? 9-1/4 inch hole saw? All CHT hole saws are available in diameters and depths up to 36″.