Configuration conversions take just seconds; no wrenches required. 2 or 3 Jaw application, with a 7" maximum reach, 3" to 7" spread. Both external and internal pulling action. "Live center" action forcing screw. Professional finish for long lasting durability OTC Three-in-One "Griplock" Puller manufactured to OTC's rigorous specifications to ensure the quality professionals expect from OTC. Pressure bearing yoke cap holds jaws in place for ease of set up - in any orientation. Yoke arms are designed with two positions for jaw placement, enhancing spread control and providing optimal pulling force.