From the Manufacturer With Amerock small changes make a big impact. Express your personal style with the coordinating hardware for the kitchen, bathroom and the rest of your home. Marathon hinges are guaranteed to perform - smooth, quiet and trouble free. Exceeds 250,000 cycles - outperforms conventional knife hinges and KCMA standards. Reliable self-closing force - outlasts the conventional knife hinges. Cuts should be made with a #6 dado 9/32-Inch W. Amerock is the ultimate, time-tested source for your hardware needs. This Burnished Brass Knife Hinge from the Marathon Hinge Collection is a perfect addition to any kitchen or bathroom. Product Description Self-closing 1/2" Overlay