Hammer unit
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Hammer units, also known as HU, are a unit of measurement used by Source Engine games. It is also used to judge the speed of objects and players in-game, mostly for Competitive play. 1 Hammer Unit is the minimum distance the Source Engine can measure.
- For character models 1 Hammer unit corresponds to 1/12th of a foot (~ 25mm)
- For maps 1 Hammer unit corresponds to 1/16th of a foot (~ 19mm)
- Hammer units are also used for finding the range of a weapon

