Use this Vintaj ball pein hammer in conjunction with a bench block to imprint words or rivet charms onto altered blanks and to create a distressed look on your findings. Use the round head to mold and soften your metal project. Measurements: The head is 2.5 (63.5mm) long. The flat end has a diameter of 3/4 (19mm). The round end is 1/2 (12.7mm) deep. 9.5 (241mm) total length. Remember to wear eye protection!