EM-Tec CVC1 standard triple grooved/smooth vise jaws include one side with triple shallow 90° grooves to improve clamping of smaller and/or round samples. The vise jaw can be mounted with the smooth side to avoid markings on the samples. The vise jaws can be mounted op top of each other to increase the double the height of the vise jaws to 24mm. Size of the EM-Tec CVC1 standard vise jaw is 12x40x6mm.