Crimper

I messed up and bought the 3 jaw and just to clarify that means it has a total of 3 teeth not the one I needed 3 on bottom 2 on top but it works good gives a good crimp for lighter gauge ductwork roughly 26ga-22ga but as for 20ga it barely touches it and the 3 jaw takes way longer to crimp a larger pipe compared to the 5 jaw other than that I'm happy with it and will keep the and buy a 5 jaw next time

If u are looking at these crimpers u are probably a sheet metal tradesman and u know that Midwest makes the best snips, but stay clear of their crimpers. You are much better off getting the Malco crimpers. These midwest ones have been nothing but problems for me. The middle blade was crooked from the start, they tend to loosen up and fall apart, and even the lock starts to seize up. I literally have to take out my flat head to unlock and lock the tool every time i use it. If you need crimpers for your profession might as well spend the couple extra dollars and get a better pair like the Malco, Klein or Lennox ones.

Does a professional job

38 days in and they broke apart already