Estwing 8 Oz. Ball Peen Hammer With Blue Vinyl Shock Reduction GripEstwing 8 oz. Ball Peen Hammer with Blue Vinyl Shock Reduction Grip The Estwing Ball Peen Hammer has a bonded and molded Shock Reduction Grip, which offers the utmost in both comfort and durability while reducing vibrations caused by impact. Estwing hammers are the only hammers that can make this claim. The head and handle are fully polished and forged in one piece. The Ball Peen Hammer is typically used for metalworking activities such as shaping