T-slot router bits are specialized cutting tools used in woodworking to create T-shaped slots or channels in a workpiece. These bits feature a unique design with a cutting edge that forms the shape of a T, allowing for precise and accurate cutting.

T-slot router bits are commonly used in applications where a T-shaped groove is needed to accommodate T-bolts, sliding tracks, or other hardware. They are often used in the construction of jigs, fixtures, and router table accessories, where the T-slot provides a secure and adjustable means of attaching and positioning components.