The Hitachi 70 lb. Hex Demolition Hammer (H90SG) is the ideal solution to your demolition hammer needs. The H90SG 70 Lb. breaker hammer makes improvements on previous models with greater power, increased performance, lower vibration and a universal tool retainer. The 15 amp motor powers an improved hammering mechanism which more efficiently transfers energy to the bit, improving demolition performance. A new vibration absorbing main handle produces low full-load vibration, resulting in less user fatigue and greater productivity. The H90SG employs a sealed grease system and auto-stop brushes for minimal maintenance and durability.