You will use the protractor to gauge the brake as you bend the metal little by little.
Bending 22 gauge hardened steel sheet.
22 gauge 0 030 0 76 mm.
0 017453 x 90 x 0 020 0 33 x 0 024 0 0438558984 inch bend allowance.
If you want a sharp 90 bend tap along the crease with a mallet.
As an example if you want to bend 24 gauge sheet metal at a 90 angle the calculation would be.
Category thickness minimum bend bend radius.
Keep in mind that some metals are more brittle than others.
22 gauge 0 030 0 76 mm 0 5 12 7mm.
Finally bend the sheet up by hand to the angle desired.
Next place the wood parallel and slightly behind the bending line.
Mark a bend line and place the sheet metal on the edge of your bench.
Cut the section of metal out or otherwise prepare the metal to be bent by removing any burrs or sharp edges.
Bending a brittle metal beyond its limits could cause the metal to snap and break.
Clamp the wood on top of the metal to the workbench.