Works for standard size O-Rings with an inside diameter up to 13"
Made from high quality plastic
Country of origin: China
Description
Accurately determine O-Ring sizes in all AS568 standard cross-sections up to 13" ID. The telescoping slide is easy to use. Just place your o-ring around the holder on one side and around the notch on the other side. Slide out the gauge until the O-Ring is taut but not stretched. The standard AS568 size will display in the box.