1 point 5 years ago.
Cutting a square hole in sheet metal.
Go slow and drill a smaller hole first ti guide the bigger rill bit.
Drill a hole large enough for a jigsaw blade in the part you re cutting out then cut it out with the jigsaw you ll have to curve into the straight lines of your square hole and do a little whittling but it works.
Jigsaw and a file.
Place your sheet metal on your steel block and position your centre punch at a central point in your cut out design.
Blacksmithing for beginners cutting a square hole in sheet metal.
In this case w.
Updated better method here.
How to use chisels instead of files to cut a share hole for carriage bolts.
Ensure you fix the metal sheet down when you drill do not hold in you hand.
Https youtu be m3ul s9 ma0 make your own homemade broaching tool for drilling perfectly square holes in steel.
Https amzn to 2ndf97w the best tin aviation snips.
If the hole is a lot bigger then your biggest drill bit then drilling holes round the edge of the square and then connecting them with a saw is the best way for you.
Https amzn to 2mkd0sj large screw driver.