Slide rail device

A slide rail device adapted for collecting drill dust, the slide rail device comprising:

• a fixed rail having a first surface and a second surface that are spaced apart from each other, a plurality of through holes that are formed through the first surface and the second surface, and a plurality of through-hole surfaces that respectively define the through holes, each of the through-hole surfaces interconnecting the first surface and the second surface, and defining two openings that are respectively in the first surface and the second surface;
• a moving rail operable to slide relative to the fixed rail;
• and
• a plurality of dust-collecting units spaced apart from each other and disposed on the fixed rail, each of the dust-collecting units including a cover member that closes one of the openings of a respective one of the through-hole surfaces, and a dust-catching member that is adapted for the drill dust to adhere thereto, the cover member of each of the dust-collecting units cooperating with the respective one of the through-hole surfaces to define a dust-collecting space.