

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.
🔧 Punch Perfect Holes, Every Time — Power Meets Precision!
The AMZCNC 8 Ton Hydraulic Knockout Punch Kit delivers professional-grade punching power with an 8-ton capacity, compatible with GREENLEE tooling, and includes 6 dies for conduit sizes from ½ to 2 inches. Designed for electricians and contractors, it punches clean holes in steel up to 10 gauge and various metals with ergonomic ease, making it an essential tool for efficient electrical panel and conduit installation.

























| Asin | B096TFHN4Q |
| Best Sellers Rank | #86,464 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #7 in Knockout Punches |
| Brand Name | AMZCNC |
| Color | Black, Blue |
| Customer Reviews | 4.4 4.4 out of 5 stars (360) 4.4 out of 5 stars |
| Item Dimensions L X W X H | 15.75"L x 10.51"W x 5.28"H |
| Item Weight | 8.78 kg |
| Manufacturer | AMZCNC |
| Material Type | Alloy Steel |
| Model | SYK-8 |
| Operation Mode | Hydraulic |
| Part Number | SYK-8 |
| Pin Hole Diameter | 2 inches |
| Sheet Count | 10 |
| Upc | 723616107719 |
User
Knock-off brand, but professional grade performance…
Well made plastic carrying case that keeps parts where they belong during storage/transport. Hydraulic pump pressure release valve it well positioned and provides tight shutoff, easy release, using minimal effort… quality valve seat. Only complaint is the hydraulic ram/ hose connection fitting is solid, fixed…meaning the ram doesn’t swivel at the hose connection. This adds challenge when repacking and closing the case after use. However, the ram/hose connector fitting can be adjusted, if necessary, for optimal fit. This tool is 33% cost of professional, top-of-the-line, leading competitor. Sacrificing a swivel fitting to save $400 is a no-brainer. Great value and quality product!
User
Works great for an even better price.
Licensed electrical contractor here, honestly very impressed. Works just as good as any other hydraulic knockout sets I’ve had over the years. Snagged this one up based off other reviews and the price that couldn’t be beat, and I’m very happy I did.
User
Good kit.
This kit is very helpful for light wholes making in a panel box. Worth the money, however, this is NOT for heavy duty electrical work, it will not make it in two big jobs.
User
Bueno
Buen producto
User
So far, so good. But the case is pretty bad.
I've only cut a few holes, and so far, so good. The holes are easy to cut, clean, and neat. The case I got is different from the one in the listing. With this layout, I imagine it results in a smaller case. However, the tool does not fit in the case. The case can't close all the way. You really have to smash it shut to engage the left latch. You can see in the picture, there's a 3/8" gap that you have to really push hard to close. The latches are not hinged. They are attached with a super thin piece of plastic that allows it to move. As we all know, these "hinges" have a very short lifespan. You can see how white/colorless the hinge point is because the plastic is so thin. I give this case no more than 50 open/close before the latches break off. Probably much less on the left due to having to smash that side shut. I'm already looking for a replacement case because I don't like how the tool doesn't fit, and I really don't think the latches are going to keep it shut for very long. Over all, I gave it 4 stars because the cutter costs much less than name brand versions and is doing an equivalent job of cutting. However, I would have paid a bit more for a better case. Had I known one of the other off brand tools had a better case, I would have gone with that one.UPDATE: So far, still good. It's cut all of the holes we've needed so far. This tool doesn't see a lot of use with us, so I can't speak for it's long term durability yet. The only problem we've found is it seems like the pump valve sticks open sometimes. We will pump and pump, but it never compresses the cutters. They will get tight, but won't cut. We have to open/close the release valve, and just keep trying. Eventually, it will start cutting. Once it starts, we don't have the problem again and can cut many holes. As stated, we don't use it a lot, so there are times where it will sit for months with no use. It's after these long hibernation periods that it has the issue. But since it eventually starts working, I'm keeping the rating high. -1 because of the issue though.Also, the case is holding up. Due to low use, we haven't hit the 50 open/closes yet! But the hinge is still holding for now. I didn't find a new case as it just wasn't a priority. Rest assured, when it goes, I WILL be back to post about it!
User
Excelente adquisición
Excelente!!!
User
Punch and Dies Different Diameter than Marked
This knockout punch is functional in that I was able to punch circular holes in 16 gauge steel. However, the punch and dies were wacky sizes that did not correspond to their markings. The punch/die marked 1/2" actually punched 22 mm holes. The punch/die marked 3/4" actually punched 28 mm holes. The punch/die marked 1" actually punched 34.5 mm holes. The punch/die marked 1-1/4" actually punched 43 mm holes. The punch/die marked 1-1/2" actually punched 49.5 mm holes. The punch/die marked 2" actually punched 57 mm holes. So it's not useful if you need holes punched with specific diameters. The instructions had no photos or diagrams and were written by a non-English speaker. But the punch itself worked OK.
User
Knockout punch
Me gusta. No lo he usado aun pero parece tener buena calidad.
User
Great bang for your buck
I’ve been doing electrical for 20 years and have always used greenlee. I saw this last week on Amazon for 120$ CAN, did a bit of research, found nothing but decent reviews and decided to order it. Arrived today, knocked out about 20 holes from 1/2” to 2” and the knockout performed flawlessly. I would recommend this tool.
User
Leaks oil after 7 months
Its good for the price, just wish there was a 1 year warranty ( It started leaking oil after 7 months )
Trustpilot
1 month ago
4 days ago
1 month ago
3 weeks ago