This powerful HERCULES® 15 Amp, 42 lb., 1-1/8 in. Hex Lower Wall Breaker Hammer with Maximum Vibration Control delivers over 22 ft-lbs of impact energy to break up the hardest surfaces. This powerful breaker hammer has a universal 1-1/8 in. hex retainer that can be used with collared or noncollared bits to maximize performance. Anti-vibration technology delivers hours of hard use with minimal fatigue. 20% faster striking,* the 15 amp motor delivers 22 ft-lbs of breaking force at 1700 BPM 1-1/8 in. hex retainer supports a wide variety of collared and noncollared bits for any job State-of-the-art transmission case with hardened gears and ball bearings for superior durability and service life Maximum Vibration Control reduces vibration felt by user at the handles In-line design provides balance for ultimate control no matter the angle Grease-packed gear box for smooth operation and maximum tool life Adjustable 360° side handle for maximum comfort and control Rugged cast aluminum motor housing for high strength and lighter weight High-impact resistant housing protects tool against drops and bumps on the jobsite