HARDELL 90 Degree Positioning Squares, Right Angle Clamps 5.5" x 5.5"(14 x 14cm) Aluminum Alloy Woodworking Carpenter, Corner Clamping Square Tool for Picture Frame Box Cabinets Drawers (4 PACK)

This is a great tool for building cabinet boxes and other projects where you need to stage a 90 degree corner. Very well done made, easy to use and looks very professional. Definitely would buy another set.

I purchased these clamps to use when I am making frames for my art projects. They work great and hold the wood securely. Easy to get off and on too. I only wished I bought the smaller size because most of my frames are 9 x 12 and you can't use all four clamps at a time so you have to glue two corners then wait for them to dry and then glue the other two. But that was my mistake. Overall these are great for any woodworking project.

I know they sell this tool set with the intention of clamping to form a 90 degree corner while making cabinet doors or picture frames, etc. I am using them with my new CNC machine. Since they have been predrilled I have used bolts with locking knobs with T track to form strong corners for placing my wood onto the spoiler board. Perfect repeatable placement of wood means I can operate the machine on many consecutive pieces without having to do alignment for each piece. They are so strong I can apply clamp pressure for a great hold down. Maybe they should include some t track bolts that work with the included knobs and supplement their use for this purpose into their marketing information. Great set of tools that are packaged, manufactured, and delivered in perfect condition. I am very happy with theses.

When I make a frame, I want the pieces to lay on a flat surface. Other clamp systems do not allow this, as they float the frame on the the surface of the clamp unit. Surely, they work but suppose that despite inspection, there remains one slightly warped piece? Unless you use four clamps, your frame will fall short. with this systems, you are certain to catch material inconsistencies. This systems allows you to lay the frame flat. I have been making frames for many years and this system simplifies this endeavor. It is a good investment because it works and well made to boot.

Use them all the time

These are great. Its like having 2 more hands to help hold wood together before fastening them. They seem well made and accurate. I am glad I didnt pay the over $200 price tag of the ones i was originally going to buy. Those might be better for daily or professional use but for the occasional use that I am going to use these for, they work for me.

Strong and simple to use. Do an excellent job keep the pieces square. I liked them so much that I bought a second set.

I've used these clamps a lot building shelves and fitting out my garage. If you're working with rough lumber, they're already perfect. Just buy these and don't worry about anything else I'm about to say. However, if you're working with finished lumber or higher-grade plywood, you'll want to be careful. These clamps do not pull straight. The way they are designed, the "foot" meets the wood at an angle and so will bite into the edge of the wood as you clamp down. This is especially noticeable if you're needing to pull bowed pieces straight to get those 90* corners. You can easily fix that by putting a piece of furniture felt on the "foot" of the clamps so the force is distributed more softly and the metal is kept away from the edge of the boards you're working on. Some people (like me) are fine doing that bit of tinkering with their clamps for the value. But if you want something that won't marr your furniture project and that you don't have to mess with, these budget clamps may to be for you.

Very solid brackets that hold your corners tight and at 90 degrees. I recommend these items.

Good quality at a reasonable price.

I wish I got them earlier.its accurate, strong. So helpful and time saving in making drawers and boxes. I might order another pair

Quality product that meets the need and expectation.

I ordered 2 pairs of these and only one set was truly 90 degrees square so there is a manufacturing risk here. I obviously kept the pair that is truly 90. These are fantastic tools. They are well made and the included measurements on either side can be helpful. Overall I'm pretty happy with the set I kept. I see no reason in spending more for that name brand set. These are well made and if you can get a set that is truly 90 square they are just as good for a fraction of the cost. I do feel there is a quality control issue with these cheaper squares but Amazon has a great return system if you need to use it so there really isn't a risk. I can recommend this for sure.