Hammers mays seem like simple tools, but they are among the most difficult hand tools to manufactures. At Stanley, every hammer is engineered with safety in mind. Stanley's latest duel density grip design reduces the effect of torque on the wrist and elbows. In fact, in independent lab test the FatMax Xtreme AntiVibe hammer transmitted 30% less torque through the grip than a standard one piece hammer. You'll also find balanced heads, ergonomically-designed grips and handles shaped to prevent slipping.