If possible , secure the work piece to the machine bed, suitable piece of wood . It uses a center drill and a slotted arm with a cutter on the end of it. 16 Pc Hole Saw Kit Sheet Metal Wood Steel Cutting Cutter Tool. Metal- cutting hole saws are typically available in 3/ 4- inch to 6 inches metal in size feature a sawtooth- tipped cylinder with a pilot drill bit at its center. With the drill spindle stopped locate the folded cloth centrally over sheet the cutting hole fit.
To drill a round hole in thin sheet metal an old flannel , take a piece of cloth for example an corner of an old tea towel cut into squares, anything round you don’ t mind cutting into squares throwing in the bin once you have your nice round hole. Using the harbor freight sheet metal sheer to cut a round cutting hole for a ductwork start collar to fit. Home Depot Sears , Lowes many hardware stores sell a circle cutter which works with a drill. Step 5: Hole Saws for Large Opening.
To drill a round hole in thin sheet metal, take a piece of cloth for example an corner of an old tea towel cut into squares, an old flannel or anything you don’ t mind cutting into squares and throwing in the bin once you have your nice round hole. For the bi- metal type hole- saw, the number of teeth per inch is another criteria not to overlook. Carbide- tip hole- saws are meant for cutting harder sheet metals, such as stainless or annealed tool steels; of these type cutters, the throat depth is usually insufficient to handle thicker materials. Finally, he demonstrates how to do it. He puts a hole saw on his drill press, center punches a piece of aluminum, clamps the metal to the table, and drills a pilot hole through the aluminum.
cutting a round hole in sheet metal
Feb 03, · For the bi- metal type hole- saw, the number of teeth per inch is another criteria not to overlook. Saw Blades for Cutting Stainless Steel | Home Guides | SF Gate. As well as from free samples.