Dental Carver, Hollenback 3, CV 3. Widths of working tips 2.4mm and 2.4mm. These high quality instruments feature a lightweight stainless handle to reduce stress on hands while providing superior tensile strength. The grip is ergonomically designed to limit stress on hands while providing maximum tactile sensitivity. This instrument is used to contour and carve occlusal and interproximal anatomy in amalgam restorations.