Self-aligning design ensures that both ends of the dovetail joint match up every time * Sturdy machined one piece aluminum construction * Easily adjusts the dovetail interference to create loose or tight joints * Integrated clamps allow precise clamping of jig to work piece while the table router control knobs assure safe, comfortable and accurate use * Includes 14-Degree 1/2-Inch dovetail router bit for use with hand or table router