The K&M Ported Power Stroke Press Adapters are a significant advancement from the Version 1 (v1) by adding multiple radial holes to provide increased line-of-sight, full 360Adeg visibility, and balanced stress distribution with a symmetrical matrix of port holes. Utilizing an Expand Mandrel Holder (EXMH) allows for a wide range of mandrel diameters for installation in tight working areas (coax and progressive presses) and improves mandrel positioning with a fine thread pitch. Expand Mandrel sold separately.