Kreg KHCCC 90° Corner Clamp, 2 Pack

I purchased 2 of these clamps. Neither one will hold 3/4 inch plywood when assembling a cabinet. I have a right angle clamp by Kreg that uses the same auto adjust that works like a charm. I may have been lucky enough to get 2 defective clamps. So I contacted Kreg about this. The same day I received a reply describing how to reset the clamps and it this doesn't work to let them know. So I followed the instructions and the clamps begin to work like they should. I have to commend Kreg on their quick response. Here is how to reset the auto adjust clamps." So you will open the jaws and back out that adjustment screw to the point where it is really loose but not falling out. You should see around 3/8" of threads between the bottom of the head of the screw to where it screws into the mechanism. Then you will close the jaws then open them back up. After that, you can bring that adjustment screw back to the positive around halfway down and try to clamp it down. That adjustment is not an exact adjustment, you may have to tighten it more or loosen it more to get the correct pressure you want to apply. When you are using the clamp, you will want to make sure you are opening the clamp fully when you are moving the clamp. This will allow the Automaxx system to reset to zero each time. You should only need to adjust the adjustment screw if you need to add or take out pressure from the clamp as the clamp will adjust to different thicknesses on its own. "

they are not kreg khcc corner clamps. no kreg logo on the handles.really hard to adjust.can't register this clamp on the kreg website for warranty

The tool works great but I needed to make 2 adjustments to get it there as shown in the pictures. The first is that it had almost zero clamping pressure. I read somewhere how to fix this and it seemed to work. You need to back out the adjustment screw most of the way, cycle the tool, and then adjust it to the pressure you need. Kreg should do this at the factory so shame on them for delivering these in this condition. The 2nd adjustment was that the boards were noticeably out of square (1 to 2 degrees which amplifies over the cabinet distances of course as 1 deg = .017"/1"). I checked the jaws for flatness and squareness and saw that one jaw was slightly out of flat in the direction that was consistent with what I observed in the clamped boards. I took a file and carefully flattened the offending jaw and now they are quite square and repeatable. The clamp is now very handy to use and accurate.The disappointing thing is that Kreg could have produced the tool this way so it is not up to their normal quality standards and they should fix this before losing the public on a well conceived and useful tool

These are an imitation of the actual KREG product. I compared to an actual KREG at the store and these look somewhat less polished and less robust. They work okay, but have at least one serious FUNCTIONAL LIMITATION.The actual KREG product has an adjustable corner stop, but this cheap knock-off does not. If you watch the (KREG-made) video they pirated to advertise this known-off, you can see them use it. It's the beveled, spring loaded piece on the smaller / inside clamp face. On the KREG you can pull up on and rotate the stop to configure the joint. Say you have 'bottom' and 'side' pieces for your joint. If you have the corner stop turned one way, the the 'side' would run all the way to the stop / outside of the joint and the 'top' would but into it. Kinda like this: |_ If you rotate the corner stop the other way, 'bottom' will go all the way to the stop, which will be the outside of the finished joint, and the 'side' will butt into the 'top' piece.Not being able to easily change this is a severe limitation on the usefulness of the clamp. It CAN be changed by unscrewing the stop, rotating it, and screwing it back in. This is a pain in the anatomy because it's difficult to get at the screw and difficult to re-assemble. Not super hard, but not something you want to do every time you put the clamp in a different position.So, false advertising in calling it a KREG product and using the stolen video that highlights features these clamps don't actually have. Boo. I hadn't really shopped for these when I purchased them, so I didn't realize how much cheaper they were than the actual KREG product, or I would have known they were knock-offs. I doubt I'll send them back, but I wouldn't buy them with the hard-to change corner stop.

I used them to build a box with cubbies for shoes. It held the shelves nice and square for me while the glue dried. I also bought a pair of cheaper clamps that do the same job. These were slightly easier to use, but cost a lot more. I'd buy them again though. I read reviews about the adjustment screw being too small and hard to turn. It's only hard to turn if there is pressure. I'm able to turn the screw with my thumb. If I can't turn it, I loosen the clamps then try again.

The clamp works well enough. It'll hold the pieces perpendicular, but it takes takes some fussing before it'll actually do it. I ordered two clamps and both needed to be tightened before they would hold the pieces tight enough to do any good. And that's fine, as you can't expect them to come perfectly calibrated for any width of material you throw at them, but once on and clamped, I also had to do a little bit of finessing to get the pieces perfectly aligned. Once you get them aligned, the clamps will hold them pretty well, but I was under the impression the clamps were supposed to do this aligning on their own through the clamp action. By the time you've inched the pieces where you want them, I'm not sure you've saved much more time then you would have using a traditional right angle clamp. They do, however, save some time and the more you do it the faster it goes. Was hoping they'd be a one step clamp, but two steps isn't bad either. They hold the material well.

Bought this clamp, and have used it once, came to use it, and it didn’t work. Looking at it, I notice a small spring is missing. Have contacted Amazon, who are contacting the seller to see if I can change it. When it was working it worked great, and made joining right angled joints great.

Well engineered. I initially bought some corner clamps that to all intents and purposes looked like Kreg clamps but when they arrived they were a cheap and poorly engineered imitation. I sent them back and ordered the Kreg which are in a different league. Great product

very poor quality one clamp did not work at all very expencive for what they are will stay away from greg tools infuture

Not the best brought 2 and 1 always locks up and takes for ever to unlock.

Good corner clamp however I would have liked the clamp to open more for thicker prices of wood