What Rockwell hardness are your tin snips? Don’t know? That’s probably why you are replacing snips more often than you should be. Aviation snips and other metal cutting snips are designed for making curved and straight cuts to stainless steel and sheet metal, but they are also heat treated for hardness.
Replacing shears or snips often means two things 1) Spending more money than you have to 2) Using a pair of dull snips because you don’t want to replace them. Do yourself a favor and read our guide for additional purchasing info, shop our wide range of sheet metal snips, and then buy a pair that will last longer and do better work than you are used to.