When miters are glued up they tend to open at the tips because end grain has been cut on the diagonal. These little spring miter clamps are perfect for keeping the pressure on while gluing miters, and when the glue is dry the tips will still be together.  The sharp points pierce the wood without cutting wood fibers so it's easy to clean up the marks. 

Miter clamps are the only way you can pressurize compound miters and these clamps will hold any compound miter as well as all awkward shapes and profiles. When you see the superior results, you'll never stop using these clamps.  Get a dozen & you'll find dozens of uses for them!

The handy Miter Clamp Pliers takes a pretty strong thumb to open our miter clamps wide, (they will open nearly two inches by the way).  Many users, including lots of big strong guys, like the ease of operation that the plier allows.  There is no strain in the hand with the plier so you can calmly place the points exactly where you want them. If you use the clamps a lot and find that it pains the thumb, order a plier.  They make applying and removing miter clamps easy.