The cross peen is used to start brads or finishing nails without the risk of damage to fingers. The round head, with the slightly belled face, lets you drive nails flush without marring surrounding wood.
The hammers come in three sizes. The smallest is best for work on brads and small nails traditionally used in cabinetmaking.
Overall lengths are stated in the price lines.
The 10 oz Warrington Hammer is no longer available.