HEAVY-DUTY OCTAGONAL HEAD - Made with rugged steel that does not fracture, generate splinters or produce sparks. OVERSTRIKE PROECTION - Equipped with a shock absorbent guard which protects against overstrike damage. AVOID MATERIAL DISTORTION - Will not mark, damage or deteriorate objects. MUTLI-PURPOSE STRIKING - Crafted for heavy striking of wood, metal, concrete, stone and more. URREA striking tools are used for direct striking. Our sledgehammers are specifically designed to avoid distorting, marking, or damaging the parts subject to striking. Sledges are manufactured from various materials such as high quality brass, plastic injection, high impact rubber and high strength micro-alloyed steel. They are also hot forged, machined with high precision and heat treated to provide the best combination of hardness and resistance to blows.