Ratchet Knockout Hole Punch Driver Kits 1/2 to 2 inch SLUG-Buster Knockout Electrical Conduit Hole Cutter Set KO Tool Kit (CC-60)Global Recycled StandardGlobal Recycled StandardGlobal Recycled Standard

A life saver. I recommend also buying a powered Ratchet. Made my solar install way easier than my initial one. trying to drill all the holes was way harder than using a knock out tool. I'll never go back.

I’ve been using this to make penetrations in steel Nema 4X cabinets for conduit connections and ventilation outlets. It makes a clean, round hole with no burs and is miles above trying to use a step drill. You do have to drill a 3/4” hole, for which a step drill is very handy, but after that, you just thread the die and threaded rod into the hole and crank on the bolt until you hear one pop and then the other. Effort is minimal because the dies are very sharp and hard. Makes two half-annular waste pieces that do not get stuck inside the die.

Very satisfied especially for the price. This set will punch out 1/2" holes all day long with minimal effort (I've done 26 so far). I have found on the larger die (only using the 3/4” and 1" dies) you need to be pretty liberal with the grease. Im only punching out electrical raceway and j boxes in my shop but I've had to chase out the threads a few times even using nice cutting fluid and thread lubricants. The punch dies themselves are fine and easy to sharpen, it's just the threads on the larger screw fixture that seem a little soft given the torque needed. It's not greenlee but I'm also not a pro. Needs a little TLC every few punches to clean out fines and rechase any galled threads but it's good enough for me and cuts perfect holes.I can't speak for the quality of the ratchet with the set as I prefer to be precise with my hole location and use a box wrench when I'm punching knockouts under 1".Go slow, lubricate your threads, apply even torque. Don't quit after the first "pop", wait for the second pop and then turn it once more to chamfer the edge and it pops through.Overall, I'm very happy. Quality "seems" a step or 2 above a comparable HF set."No Ragrets". Not even a single letter.

Cost effective compared to Greenlee, if you're not using everyday this punch set is great. I highly suggest keeping the dies well greased when using them.

Good as Greenlee at much lower price!

Very nice set! I ended up not needing these because I was given a set for free but very nice

I was concerned that this would be a cheap tool and would probably break. After using it I'm really impressed. An electrician and a business owner I feel like this is an outstanding product.

Love it! Easy to work with