TEMCo Industrial Hydraulic Knockout Punch TH0004 - Electrical Conduit Hole Cutter Set KO Tool Kit 5 Year Warranty

I reviewed just after purchase (at the end) but thought i should update after 18 months: The dies are holding up well for what this set cost I did not expect it to last but it has. I have used it quite a bit and did tune up the 1" and 1.5" punches, As I mentioned I use it with my green dies for the larger sizes i have and the ram will do 3" holes well. I dont to much larger than 3". If only 1 small 1/2 or 3/4" i use a carbide hole saw since i have to drill the pilot anyway but if doing larger and or more holes this baby is really easy to use and quick, I oil the punch with every use and it only takes a few pumps and the hole is done, if i were to purchase again i would get the larger set up to 4" but when I purchased this I was gambling because it was 1/8 the cost of the green one. I have had no problems with the ram or draw bar and i mentioned i did use a dremel to tune up the cutting edge on the 1" & 1.5" but have done the same on my green set when dull (they may have punched more holes but at 1/8 the cost a little tune up is the same as i do with the green ones) the case has held up well. my apprentice bought the same kit and some of the guys in his class gave him a hard time until they heard that my set has lasted, the only thing that could make this set any better for an electrician is a 1-7/32 punch for industrial control panel switches where I may put 30+ holes in 1 panel (that 1 punch cost almost 40$) I five give the set 5 stars for the cost it should get more but thats all they allow, and I did not request a free gift for my review so you know it is honest. original review: for the price this is an awesome knockout set. I have punched a few holes and it worked as well as my green one. the dies from my green one also fit the draw bar at 1/8 the price hope it holds up but for the price I could buy quite a few new sets compared to the green one.

I actually bought this to use with the Lisle 17350 exhaust pipe expander kit. The stud in this kit fits both sets (Temco and Lisle) perfectly so no compatibility issues there. If you are working with thicker exhaust pipe or especially stainless it can be very hard to expand it manually and this setup works amazingly well. The 9 ton hydraulic capability not only gives you the power you need but it's also alot easier to control how much you're stretching the pipe so you can really get a perfect fit prior to welding anything. I know overall it's not cheap setup at all but it will save you a ton of time and money if you're working with stainless exhaust (which is not cheap either) so I highly recommend it.

This product is great and compared to other manufacturers you cant beat the price. This is an electrician tool so the sizes are for conduit so they aren't true measurements. So the 1/2 inch knock out is 7/8 if you want to know the rest look them up its a standard. If you don't understand this, this isn't the product for you. Stop complaining the sizes are wrong they aren't you just don't understand the product. The bit does pull much faster then others I've used so I do expect it to fail eventually but who knows.

UPDATE: We still use this for work and are happy every single time. I just wanted to let you know I used it on a 5gal plastic bucket to make a duck feeder. It worked great with that too :) We bought this not really knowing what it was. We just needed a hole bigger than any bit we had. Buying the large bit would cost twice as much. We set it up, read the instructions (kinda) and BOOM!!! We had our hole and were stoked at how easy it was. It is a for sure thing to get if you need holes in metal. It reminded me of my first cuisinart...you spend the large amount of money and end up using it for a few seconds, but oh the time that spent money saves you. If this is anything like my cuisinart it is money well spent as I've had that since my first marriage 30 years ago and its still being used 30 seconds at a time. I wish my video showed the actual hole that was made. it was perfect, but we were just so damned excited about the ease. Get one if you need holes :)

Fonctionne très bien, bonne qualité et très satisfait pour le prix payé !