From LSWiki

Class: Close Combat Weapon Skills
Attribute: Strength
Pedagogy: Physical Training

The ability to use hammers and similar weapons in combat.  When using such a weapon, 
this skill influences your ability to hit your opponent, the damage you inflict, how 
fast your attacks are, and how well you use your hammer defensively.

Notes

Trainers

Avalon: Bercilak
wandering: Lhethan Hagal
Kolond: Duthien (only trains dwarves)
Losthaven: Raelan Jax
Mycenae: Kyros
Shatterspire: Sthlar
Stillwater: Captain Roberts
Association:
Losthaven Guard: Commander Jonathan Tredwel
Guild:
Aisenshi: Musashi
Battleragers: Borulien
Brute Squad: Fezzik
Hawkmen: Katar
Knights of the Round Table: Sir Lancelot
Quest:
Corna Quests: Marshall Osaka