AMZCNCHydraulic Knockout Hole Punch Set 1/2 to 4 inch Electrical Conduit Hole Cutter Set KO Tool Kit Metal Sheet Puncher (15T(1/2"~4"))

This tool helped me a lot, it is perfect for opening holes in metal.

Great set for the money 💰

Initial impression: seems decently well-built for the price. I used it on a small job to punch some knockouts into a couple of pull boxes and new electric panels with ease. On/off valve is labeled backwards, but that’s no surprise given it’s origin in china (minus one star for poor QC). Even if it broke at the end of this job, which it didn’t, $89 well spent. I’ll buy one again if this one ever irreparably breaks and I need to replace it.

I recently had to replace the primary panel to update to whole house automatic transfer generator. I have solar so there is quite a bit of cable routing required. This unit made cutting the conduit holes simple and clean.

The case was broken and the box was all messed up and smashed

You would think easier to use then ratchet style, this is much harder. haven't even had a month and can't return either set. Lousy return policy on this one, 20 years of using Greenlee, Ratchet Style, I thought this would be easier. Ordering a Greenlee and this is getting thrown away.

Works awesome.

There is parts missing