A table saw is provided with a table assembly including an upper cutting surface having a front edge and a rear edge; a slide assembly including, at each of the front edge and the rear edge, an inner slide member, an intermediate slide member slidably journalled in the inner slide member, and an outer slide member slidably journalled in the intermediate slide member wherein the intermediate slide member includes a pin moveably disposed in an elongated slot of the outer slide member; and a lock assembly under the upper cutting surface and including a lever, a cam at a distal end of the lever, and a spring biased two part rod wherein the cam is pivotably disposed between two parts of the rod. In response to a clockwise turning of the lever and the cam the biasing member expands to unlock the slide assembly.