At first locate the center of the whole.
Cut 6 hole in sheet metal.
Open the snips all the way at the beginning of a cut and seat the sheet metal as deep as possible into the opening this provides you with maximum leverage.
Then create a pilot hole within the penciled circle using a power drill.
Hole dozer hole saw features rip guard teeth that were built with more steel behind the cutting edge for added strength.
Metal cutting hole saws are typically available in 3 4 inch to 6 inches in size and feature a sawtooth tipped cylinder with a pilot drill bit at its center.
Now it s time to use that center punch.
If your project requires cutting a hole in the center of sheet metal draw it on the metal as you would any other cut line.
Use your center punch to strike at the center of the hole.
Https amzn to 2mkd0sj large screw driver.
Https amzn to 2ndf97w the best tin aviation snips.
For cutting out holes in sheet metal it s going to be necessary that you begin with a starter hole this can be formed by using the hammer and chisel method to punch through the metal.
Next use a compass to outline the edge of the hole.
6 3 8 inch hole saw with heavy duty arbor 38mm cutting depth hss bi metal hole cutter for can light recessed light smoothly cutting in wood plastic drywall and metal sheet renewed 25 30 25.
Put your ink to the use and mark the hole center.
Place your sheet metal on your steel block and position your centre punch at a central point in your cut out design.
They give you increased productivity on the job site as well as better hole quality and are backed by a limited lifetime tooth break warranty.
This will create dimples in the sheet.
The milwaukee 6 in.
Https amzn to 2kstzae sheet metal hammer.