Comfortable Grips: Textured, molded rubber cushion grips that are oil-resistant. Durable: Carbon steel forged steel heads for strength and longevity. Mechanic’s-Style: Oversized handles for sure grip. Cross pein pin hammer: also known as a telephone hammer is used for a number of purposes including precision work on small fixings, panel pins, body repair. Product Size: 24-ounce ball pein hammer. KSEIBI 24-ounce ball pein hammer for peining rivets, striking chisels and punches, and shaping lighter duty unhardened metals.