The proprietary design of the TurnersPress keeps parts in horizontal alignment while pressure is applied, preventing splitting and ensuring proper assembly. Six half-circle metal stanchions are located beneath the spring-loaded mandrel opposite the pressure arm. One or more can be quickly and easily flipped up under the mandrel, preventing it from bowing in any direction when pressure is applied during assembly. The mandrel is spring-loaded, so it pushes stacked components against the pressure arm, holding them in alignment during set up. The pressure used on any one assembly is precisely calibrated using the fine threaded micro-adjustment pad.