Estwing's Patented Hammertooth Hammer features a tooth like fin on the neck of the hammer, at the perfect place to aid straightening studs and joists with ease. The hammertooth allows you to use a nail gun and keep your hands clear. This Estwing hammer is solid forged from one piece of steel giving it unsurpassed balance and temper. The exclusive Shock Reduction grip is moulded on to the shaft and offers the utmost in both comfort and durability, while reducing vibrations caused by impact.