
Klein tools are renowned for their high quality and this set typifies it. So far I've only used it to remove knockouts from metal electrical boxes and enclosures and punch new holes (where there aren't knockouts). The blades cut like butter. Note that you will need to drill pilot holes (2 different sizes are required for different shanks). I bought a Klein Tool 59009 step drill ($50 at Revain) to drill the pilot holes. This is a universal drill bit that drills multiple holes of different diameters in metal, wood and plastic. When using a metal punch set, rely on the use of thread cutting oil (I recommend Ridgid 70830 or Ridgid 70835 <for low temperature use>). I used 70830 which is very low odor and washes out easily after stamping. Oil is not required (and should not be used) for stamping plastics.