Enerpac Posi Lock hydraulic grip pullers unique safety cage design will grip surfaces where normal pullers would slip off e.g. tapered bearings. Patented "Safety Cage" jaw retention system High force hydraulic system for......Enerpac Posi Lock hydraulic grip pullers unique safety cage design will grip surfaces where normal pullers would slip off e.g. tapered bearings. Patented "Safety Cage" jaw retention system High force hydraulic system for effortless pulling of large components Slim tapered jaws for better gripping in tight spots Available in 2 and 3 jaw design More efficient hydraulic pulling, as one man can do the job where normal pullers often require two operators