Grizzly G8101 90° Aluminum Corner Clamp

Discount Price: $14.95

Customer Reviews:

great clamp [Posted on 2007-03-21]
this is a great little clamp. Allows quick set up for welding frames, or any 90* angled joints. I am using it for welding but it will work for any other material as well.

Good little clamp [Posted on 2007-05-17]
I have found it easy to use but expected it to bring the corner together. I have found that it is possible to apply a corner clamp and have a gap in the two pieces at the corner. I admit that I am new to woodworking and this may be normal, but it is not what I was expecting.

Well built, but ............... [Posted on 2007-05-30]
I have been looking to upgrade the four rather "lightweight" corner clamps that have served me reasonably well for quite a few years. I almost exclusively have used them to buld wooden picture frames, but have reached the point where I found that the small vise type rods used to tighten the clamps were becoming increasingly difficult for my old fingers to use.

The Grizzly G8101 clamp appeared to be a potenially good choice, but I was a bit hesitant concerning the single "inside clamping" system and decided to only buy one to see how well it functioned before committing to purchase three more. As it turned out, that was a prudent choice.

The clamp is indeed beefy and well built. However, I found that the lone clamp does create difficulty when attempting to get a tight fit between two pieces of a frame. The biggest issue is attempting to hold the two pieces together while tightening the clamp. Under these circumstances, one can immediately see the value of having a seperate clamp for each side of the two frame pieces being joined.

Further, when using a two sided clamping system, after a dry test fit, it is extremely helpful to only have to loosen one side to add adhesive and then firmly press that piece back into position alligning it against the one that has remained fixed in the clamp. The "Grizzly" does not allow for this type of manuver and when trying to use it, I found myself wishing for a "third hand" to complete that task.

Another problem that I noted was that the "inside corner" clamping system can tend to drive even a perfectly cut 45 degree joint a bit open on the interior part of the seam.

I have however, decided not to return the clamp as the initial outlay was not great and it might serve some other less precise need I might encounter in the future. All in all though, I cannot recommend it for fine wood framing joints. From my personal experience, I would suggest that anyone requiring a clamp for the purposes described here would be better served with a two sided holding system with well sized gripping handles.

CLAMP This! [Posted on 2007-10-27]
Clamp it with a Grizzly, and it's not going to get loose. Trust me! There's all kinds of other useful things you can do with this clamp with just small modifications. Imagine....

Solid but awkward and useful for only limited aplications [Posted on 2008-01-08]
The clamp is well built but poorly designed. It is difficult if not near impossible to use when not laying flat. Also, without separate clamps for each piece to be joined, it is difficult to align corners that don't meet perfectly. With other 90 degree clamps that have dual clamping surfaces, you can clamp one piece of wood and guide in the second then tighten the clamp. This is impossible with the Grizzly clamp, you would need three arms to do it.

On the up side, this is a large clamp and works very well when lying on a flat surface with the work piece well supported. I would still recommend almost any other clamp as long as it is the dual design.

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