Features The PROTO® ball pein hammer features one crowned striking face with beveled edges and one spherical striking face. Use hammer for bending and forming sheet metal, driving punches and chisels, and setting rivets. Head Weight (Oz.) / 12.0 Handle / Fiberglass Overall Length (In.) / 12-1/16 Tether Style / Tether Capable Head Dia. (In.) / 1-3/16 Head Material / Forged Steel