Milescraft 4011 8" ClampSquares - 90 Degree Corner Clamp, Positioning/Assembly Squares for Pictures Frames, Boxes, Etc Black

I have several sets of these. I purchased them in the sets that come with their universal fence clamps.They are accurate, checked with a steel square. They are very versatile, not just for clamping things at glue up.I would like to say one thing that really matters, that most times is not shared "Customer Service".I did have to contact MilesCraft customer service on some of these. There was a set out of several that in my opinion were just too far out of square and the legs were also not straight. I contacted them via email, and to my surprise had a response in a day or two. Well less than a week or more. Exchanged some info, and to my surprise with in a week or so replacements were sitting at my door. Thank you MilesCraft.While I buy tools from many sources and brands MilesCraft is always a stop.

Work as well as the national woodworking store brand at a much better price. Only complaint was with delivery, and I don't know if this falls on the individual merchant or Amazon, but they arrived a day late (and in the evening of the arrival day) causing me to lose 2 days of productivity.

In theory these look great. The size is perfect for many home DIY projects, and the available matching clamps work well enough. Unfortunately the execution leaves a lot to be desired. The flexible construction of the plastic renders them useless for any kind of precision work. The manufacturer should have opted for a more rigid material or more reinforcement in the design.So long as you are aware of their shortcomings, these are ok for "rustic" projects where you don't need the work pieces to be anything close to perfectly square. They work well as a rough guide to get things nearly square. For the price they are fine for things like building garage/closet shelving, rustic furniture with framing lumber etc. Just don't expect to use these for cabinets, drawers or any kind of fine finish work where details matter.The plastic material flexes enough that your project might look perfectly square when clamped, but when you remove the clamps your project may not be square at all. This happens because rather than pulling your work pieces square when clamping, the plastic can just flex instead. Not very useful if you need your project to be square, which is the whole point of using these after all.If you want a more precise product that won't flex, look at the aluminum versions that cost a bit more.

I have used these on several projects and they work very well with different clamps. Don't take up a lot of room and are light weight.

These are great. I use them all the time for making tight, perfect 90 degree corners. Note that you do need clamps to use these.

Husband building a deck and loves that a bar clamp will hold his 90 degree corners with these. Arrived quickly. Perfect.

The plastic material flex’s too much for heavier work. Ok for picture frames but not furniture setups.

I used these in the construction of an entire kitchen's worth of cabinets. I found that I preferred clamping them on with Irwin quick-grip clamps rather than the Milescraft FenceClamps. They seem somewhat expensive for what they are, but a better deal than some bigger name brands.