95WNIFE tungsten alloy bucking bar price which density is 18.0g/cm3 is 106.00USD/PC on Mar. 05, 2019. On the surface, tungsten bucking bars may look highly polished. We polish all bucking surfaces to protect the rivet stem and insure the perfect bucked rivet. So scratches are scratched off your list and riveting becomes a smooth ride. The vise cannot be used to clamp bucking bars during operation unless the vise clamp has a protective cover to prevent damage.