VEVOR 15 Ton Hydraulic Knockout Punch Kit, 1/2" to 4" Conduit Hole Cutter Set, KO Tool Kits W/Puncher 10 Piece, Metal Sheet Driver Tools, for Aluminum, Brass, Stainless Steel, Fiberglass and Plastic

I would recommend, used this on a sub panel, works great and easy to use

excellent product, work better than many other including well know brand that are costly

Perfect for the price. Only downside is the hose doesn't swivel and the case doesn't have dividers to keep the pieces from rattling around.

Works great, very easy to use and beats getting burned from metal shavings.

Performs as expected. 👍

Does not work used it for the first time and damaged stainless steel kitchen sink .I am plumber and was disappointed with product had to pay for new sink my builder was so upset .

The toolbox is HEAVY, but manageable. The Knockout Punch Kit eliminated a lot of time by having the hydraulic pump instead of using wrenches. Even though the hole it made was mostly clean, we used a burr removal tool on the edges to give a beveled edge.

I was really surprised with the quality of these. They are a long way from a Greenlee product but better than I was expecting them to be. I was thinking they would get a one star. They did the job I needed them to do.