A shuttle drone was a small Federation auxiliary craft, similar to a Work Bee, employed during the 24th century and usually seen in close proximity to a starbase or a space station.
A shuttle drone was seen in the interior of Starbase 74, close to the USS Enterprise-D's docking port when the ship was inside the station in 2364. (TNG: "11001001")
A similar drone was seen three years later in the interior of Starbase 133. (TNG: "Remember Me")
In 2369 a shuttle drone approached the Remmler Array in orbit of Arkaria when the Enterprise-D was docked at the station to undergo a baryon sweep. (TNG: "Starship Mine")
According to the Star Trek: The Next Generation Companion, the shuttle drone was built by Dan Curry using disposable Gillette razor handles as nacelles.[1]
StarTrek.com mistakenly called the drone approaching the Remmler array the USS Magellan.