EM-Tec VS12 is a compact single action spring-loaded vise for samples with a maximum clamping size of 12mm. The vise is opened by pushing the moving vise jaw with a push rod. The push rod can be removed when the holder is loaded in the SEM. Dowel pins can be inserted in the fixed and moving jaws to increase the opening to a sample size up to 18mm diameter or to hold awkwardly shaped samples; 4 dowel pins are included. Made from vacuum grade aluminum with stainless steel rods and springs.