The dovetail slide is a linear motion mechanism used for precise motion control in machine tools and precision equipment. It consists of male and female parts with trapezoidal mating surfaces, often made from materials like cast iron or steel. Adjustment screws or wedges are used to reduce play, and lubrication is applied to reduce friction.

Dovetail slides are used in machine tools for precise positioning, in metrology and measurement equipment for alignment, in robotics for linear movement control, and in microscopy for stable positioning. They offer high accuracy, rigidity, and adjustability but require precise machining and alignment. While they have higher friction than some other slides, proper lubrication can mitigate this issue. Wear over time may affect accuracy, necessitating periodic adjustments.