A T3-series utility droid along with an astromech droid
Frequently called utility droids, janitor droids, or cleaning droids, these were the forerunners to astromech droids and saw use around the time of the Jedi Civil War. During their peak, these compact droids could be found just about everywhere. Almost all of them were shorter than one meter. For locomotion, they were designed with either wheeled legs or small repulsorlift generators.
Wuher tasked a couple of rehab droids with the job of cleaning up the blaster scorch on the exterior of the cantina, a result of Codeq Santhananan's demise.
The designation "utility droid" encompassed a wide range of models that differed substantially in both their design and purpose. Certain models, notably those from Duwani Mechanicals, were occasionally identified as "astromech droids." Some models were deployed for sophisticated applied physics duties, such as starship maintenance, astrogation, and even computer programming and slicing. Other models handled more mundane tasks, including waste management and janitorial services.