Hammer

Unlike the larger two-handed hammers better designed for use in war, simple one-handed hammers are often mere craftsman's tools which are at times used as improvised weapons in combat. Such articles are useable in combat in  Ultima VII,  Ultima VII Part Two, and  Ultima VIII, as well as in  Savage Empire and  Martian Dreams.

Description
A standard tinker's hammer will serve its wielder in a melee but a little better than a simple club, and is naturally inferior to bludgeoning arms created to see combat, such as  maces or  flails. Nevertheless, it can function as a weapon for those with limited options.

Single handed hammers have an effectiveness rating of 4 in Ultima VII. In Ultima VII Part Two, they have damage rating of 4 and range of 2. In  Ultima VIII, they deal between 4- 12 damage per strike.

Rock Hammers
A rock hammer is a small hand tool used for breaking down large boulders into smaller stones. such items can be found amongst the diverse tribes of the temporally displaced Eodon valley in  Savage Empire (where they could be used as makeshift weapons) as well as appearing in various subterranean mining locations in the Underworld Series.

Ballpeen Hammers
During the Avatar's adventures on Mars, the hero would have access to ballpeen hammers brought to the red planet by the Victorian explorers who were stranded there. Such tools, although designed for metalworking, could be weaponized for use against the various beasts of the cold world, although they were not terribly effective in combat.