Stanley fatmax antivibe all steel curved claw hammers stanley fmht1 51278 the stanley fatmax antivibe all steel rip claw hammers have a one piece forged construction for durability and balancethe hammers have an antivibe tuning fork to dampen vibration and a soft grip for comfort and controlweight 570g 20oz stanley fmht1 51278 fatmax antivibe all steel rip claw hammer 570g 20oz