If it sticks there are likely metal burrs that need to be removed.
How to sharpen sheet metal.
Many methods may be used to sharpen sheet metal cutting shears some of which require specialized tools.
You will want to hit those spots with the mill file again.
Get a full set of usa made wiss snips.
It shows how we sharpen two sheet metal guillotine shear blades at 3 meters each on our wor.
Step 1 remove the blades from the shears.
Various operations are carried out so that the sheet metal can be morphed into forms that can be used in various products.
All models use mounting bolts to secure the blades in place.
Sheet metal is used in products such as roofs and electronics.
To check your work run a soft cloth along the edge.
Continue filing until there is clean metal exposed all over the edge.
Still made in the usa.
This video demonstrates our metal shear blade sharpening service.
However the work may be done with a set of common metal files.
These operations are usually carried out with automated machinery at manufacturing plants.
Sheet metal is nothing more than metal that has been pressed into sheets.