Use a scrap of plywood as a backer for the hole saw s pilot bit and to protect your work surface.
Cut large hole in sheet metal.
Clamp the sheet metal in place on your work table to hold it in place while you work.
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.
Depending on the tools you have you ll now need to punch or drill a hole where the indentation has been made to produce an accurate hole in your sheet metal.
It s meant for creating lightening holes of the type seen when building aircraft or maybe just toolboxes and furniture that are built like wwii fighter planes.
Tin snips are primarily used for cutting thin sheet metal like tin aluminum brass and thin gauge stainless steel.
When drilling or punching a hole in sheet metal you more or less cut out the entire hole at once.
In response to a question about h.
At first locate the center of the.
Be that as it may here is a neat idea from flyboy accessories for cutting larger holes in sheet metal.
As shown in the picture belo the result is not perfect but is so much better that it s definitely worth considering since it s simple and doesn t require.
Like twist bits hole saws chuck right into your drill and will cut through thin gauge sheet metals like aluminum and steel.
When cutting out a circle one or sometimes two cutting tools are rotated about a center point to.
Place your sheet metal on your steel block and position your centre punch at a central point in your cut out design.
Use clamps to hold the sheet.
This video shows how to.
Tap your hammer to leave an indentation on the sheet metal.
Don t say that you were thinking of holding that metal sheet with bare hands.
A very simple technique to drill large holes in sheet metal has been presented.
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.
Using a hole saw to cut holes through metal can be difficult and dangerous if you do not know how to use the drill s safety features.
It consists in simply putting a cloth between the drill bit and the piece to drill.
Align the snips with the line you want to cut with the upper blade of the tin snips touching the sheet metal.
How to cut a round hole in sheet metal.
