The rotary table has four T-slots in the top surface for the attachment of a Sherline mill vise, collet holder or hold-down clamps to secure your part for machining. Included are two angle clamps, T-nuts and screws that fit in the groove running around the table’s base. Two more T-nuts and screws secure the rotary table to the mill using holes in a flange extending from the worm housing. Also included is a threaded fixture that screws into the center hole of the table, allowing you to thread on any of Sherline’s 3-jaw or 4-jaw chucks with a 3/4-16 thread. A center hole 3/16″ in diameter extends all the way through the table.