The Stanley FatMax Hi Velocity rip claw framing hammer with innovative MIG Welding technology offering a lightweight and well balanced hammer with the strength of steel. A revolutionary mig welded hammer design means this 12oz hammer that swings like a 28oz. It's a 100% steel for strength and durability, with a lightweight design which reduces arm stress. Accuracy is increased with a 75% larger striking face. The exclusive dual tempered head rims and claw helps to reduce steel chipping and cracking.