STANLEY FatMax Rip Claw Hammer, 16-Oz (51-163) Product Description STANLEY 51-163 XT HMMR 16OZ RIP From the Manufacturer Patented torsion control grip technology reduces the effects of torque on wrists and elbows. Patented AntiVibe technology minimizes vibration and shock at impact. Precision balanced - feel the difference. Forged, one-piece steel construction for increased strength and durability. Features Patented torsion control grip technology reduces the effects of torque on wrists and elbows Patented AntiVibe technology minimizes vibration and shock at impact Precision balanced - feel the difference. Forged, one-piece steel construction for increased strength and durability Limited lifetime warranty Patented torsion control grip technology reduces the effects of torque on wrists and elbows Patented AntiVibe technology minimizes vibration and shock at impact Precision balanced - feel the difference. Forged, one-piece steel construction for increased strength and durability Limited lifetime warranty USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.