Abstract: An apparatus for forming coil windings includes a support rod and a pair of flanges that may be mounted in a selected position along the support rod. A plurality of pivotal arms cooperatively engage the flanges. Coil forming guide rods are received in brackets mounted in sliding engagement in an elongated slot extending in each arm. A measuring gauge is provided to set the guide rods in the desired position for producing a particular size winding. A series of clamps are then tightened to positively hold the arms and brackets in position.