Well my harbor freight set bit the dust, I made quite a few holes but it seized up and I'm unable to separate it. I've decided to just get a Greenlee, but have a question that hopefully someone with some experience can answer. I'm already over budget so why the hell not right?
While looking on ebay, I've found several sets that appear to be built so that you could use a wrench on both the die and the punch. It appears these are mostly older versions of Greenlee knockout's.
Here would be an example
Notice that the punch is not perfectly round but has flat sections to grip.
I've also noticed that the brand new versions of these punches do not have this feature and are perfectly round. I would think this would help get leverage when trying to punch a hole through a smaller piece such as a control panel. The harbor freight punches did not have this, thus you could only apply force to one side.
Are the Greenlee punches just that awesome that you don't need this? I'd much rather just get a new punch, but am hesitant on getting something that I might ultimately struggle with as much as I did the harbor freight ones.
I have 12 holes to punch so I really don't want something that is going to seize up after four or five uses. I realized I'm probably just jaded by the harbor freight punches but I have zero knowledge of these tools outside of this forum.