Cut 4 Inch Hole In Sheet Metal

For large holes a hole saw gets the job done cleanly and quickly.

Cut 4 inch hole in sheet metal.

Find the milwaukee 4 1 4 in. This will create dimples in the sheet. Next use a compass to outline the edge of the hole. Use a scrap of plywood as a backer for the hole saw s pilot bit and to protect your work surface.

The pilot hole will help you positioning the drill bit and than just drill. In contrast to how twist and step drill bits operate hole saws work by cutting out the edges of an opening. Use the milwaukee 4 in. At first locate the center of the whole.

Bi metal hole saw to cut holes in a variety of materials. Now drill the final hole at the desired diameter with the corresponding twisted drill bit but put a cloth between the bit and the metal. Milwaukee ice hardened products utilize a proprietary cryogenic hardening process that improves upon traditional heat treat processes. Use your center punch to strike at the center of the hole.

Now it s time to use that center punch. Bi metal hole saw 49 56 9647 steel hole saw cut holes from the home depot. Place the tips of. Then create a pilot hole within the penciled circle using a power drill fitted with a 1 2 inch or greater metal cutting bit in order to accommodate the jaws of the tin snips.

Step 1 create a paper pattern of the size and shape of hole you wish to cut. In response to a question about h. Put your ink to the use and mark the hole center. Position the pattern on the sheet metal where the hole needs to go and draw a line around it using a permanent marker.

Like twist bits hole saws chuck right into your drill and will cut through thin gauge sheet metals like aluminum and steel. Since this is a small hole a normal drill bit will work well in the sheet metal without extra precautions.