sharpening snips

[kbsm]

I have some older snips that could use a sharpening I have a new (water cooled bench grinder) ..How to find grind angle to do the job right the first time? Thanks

[Metalmechanic]

Took apart an old pexto tinner's shear that wouldn't cut. Chucked the blade in a post vise and draw filed the edge with a new 4" mill file. Took about an hour of careful work to maintain the angle and curve and get a sharp edge. That was 12 years ago and she still cuts with no burr.
I wouldn't use power wheels. Takes off too much too fast with too much heat. Remember, you can't replace what you took off.

Larry