TEMCo TH0397 – Manual Knockout Punch Driver Kit for ½ inch to 1-1/4” inch Electrical Conduit Hole Sizes (1/2"- 1-1/4" Conduit Size)

Was gifted a hot tap for the kitchen. Needed to put a new hole in the sink as we did not want to lose the sprayer. Used these to get a nice hole cut in the sink. Hot tap install was a breeze afterwards.

I needed one of these for work but I didn't want to spend a lot if I didn't have to. I don't use it every day so I don't need top of the line. This works fantastic and is totally worth the money especially considering it comes with a storage case. Just make sure to use it with a ratchet and socket. You can use it with an adjustable wrench but I wouldn't recommend it if you have to make more than a couple of holes.

Got this as a gift for my son who does a lot of tinkering with audio equipment.He used this and loved it!He sss as if it worked like a charm, quick and easy!

I bought these to connect an aluminum canner to a stainless steel still for extracting lavender oil. I was worried about cutting the curved surfaces, but they did an excellent job without warping the still or the canner. The hardest part was getting the pilot hole cut in the stainless. I was nervous with the popping and cracking noise it made while tightening, but the result was a smooth, clean excellent hole the exact size I needed to install fittings. I've cut half a dozen holes in various metal and they are holding up very well so far.

I couldn't be happier with this set so far! I've punched dozens of holes so far in each size and the cutters still look brand new! They seem to have a great temper in the steel and great edge retention on the cutters. I would highly recommend this to fellow electricians for when the electric or hydraulic knockout sets aren't available. These have gotten the job done every time I've needed them.

I like the price. So far it’s been working great.UpdateBeen having this for a few years now. Still cuts perfect. This is what I mean when I say “this is a good tool and brand”, It definitely is 0 regrets. Only advice is taking care properly extends its life time, put some 3-1 oil every now and then

This punch was great. Worked nice. I already used it about 4 times. It will hold up for sure. I’m using it with a socket and my impact drill works fast and cuts clean. My journeyman was impressed

I worked in power plants for 33 years. We had big budgets and the best equipment money could buy. We used Greenlee electrical products. I am now retired and I needed a knock out punch set. I saw other reviews on this product and bought this set based on what I read. This set works very well. I can’t speak to how hard the punches are compared to others or how long they will stay sharp. For homeowner use and price I don’t see how you can go wrong buying this set