3 Jaw, 8" Reach 17 Ton Capacity External Puller The Posi Lock line of manual gear and bearing pullers set the standard for quickness, ease and convenience. The patented steel Safety Cage locks the puller jaws securely in place at all times and prevents the jaws from snapping back or slipping off the work surface.The T-handle opens and closes the jaws for a one-person setup and operation. Each size puller is available in 2-jaw and 3-jaw models.