Hole Saw Best Buy

Hole Saw Best Buy John Humeniuk, Baudette, Minn.: “I bought an amazing 12-piece set of Asnomy tungsten carbide tipped hole saws for cutting through hard metal. They’re available at Amazon and other retailers. They were only $50. They work like nothing else I’ve tried and don’t get dull. “In the past, I’ve drilled a 3/4-in. hole for a bolt, and the bit would quake and shiver as I tried to get it lined up. That’s not the case with these. “I did learn the hard way that they need to be used in a drill press and not with a hand-held drill. As the titanium-plated steel pilot drill bit penetrates the metal, it holds the hole saw in place, and you start to see the slivers of metal curl up. “The hole saw has outer, middle and inner blades incorporated in its cutting edge. This makes it sharper and more efficient. They have a 1-in. cutting depth. The company says they can be used with a variety of drill types and materials, including steel, stainless steel plate, square tubes, cast iron, copper, aluminum and sheet metal, as well as softer materials like wood. They’re not designed for concrete, tile or stone. “I’ve used them to cut through 1/2-in. steel. It was a little work for them, but I don’t know how else I’d get a hole so nice and clean. “The hole saw and the metal being cut will get hot, so I squirt it down with cutting oil. I’ve found that no matter what cutting bits you use, you want to try to keep them cool. “The 10 hole saws in the set are 5/8-in. to 2 1/8-in., and the two pilot bits are 15/64-in. Recommended speeds vary by the diameter of the hole saw and the material being cut. I figured they were pretty common sizes for most jobs around the farm.”

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