Progressive Heavy Duty Shaft ExtractorDescription The new design uses our 700 Lbs pre tensionning spring mechanism which has proven reliable and consistent when extracting deep shafted bores over a broad range of Epoxy & acrylic adhesives and working temperatures. The spring pushing action is further enhanced by the reduced drag offered by the screws recirculated ball bearings resulting in a faster response to the applied heat. The progressive shaft extractor can be bolted onto a work