Tackle the toughest jobs with the HERCULES® 12 Lb. SDS-MAX Type Demo Hammer. Equipped with a high-performance heavy duty hammer and a grease-packed gear box with hardened gears for superior life and durability, this tool is capable of withstanding the toughest jobsite conditions. Anti-vibration technology delivers hours of hard use with minimal fatigue. The quick-release chuck makes on-the-job bit changes easy and cuts downtime. Concrete is no match for the constant striking power of this hammer delivered at an impressive 3800 BPM.