Norco Hydraulic Bottle Jack - 12 Ton High. The Norco 12 Ton Hydraulic Bottle Jack include a welded steel base two-piece handle safety bypass and overload system a comfortable forged base and a knurled extension screw and extension tube. The safety bypass system on the Norco 12 Ton Hydraulic Bottle Jack extends the life of the pump piston and ram beyond the ASME/PASE load-limiting standard. The extension screw and release valve are also built with heavy-duty plated steel to reduce the chances of breakage and wear. This state of the art Norco Bottle Jack prevents rust with "Parkerized" pump piston ram and extension screw. The heavy-duty extension screw and release valve are also built with a "Parkinsonized" coating which prevents rust and parts from wearing out. The Norco Hydraulic Bottle Jack w/ Extension Sleeve is a Norco product that will provide years of lifting pushing spreading bending pressing or straightening out. Features of Norco Hydraulic Bottle Jack - 12 Ton Features a two-piece zinc plated handle no leak "Uniweld" construction and 50percent safety overload factor Capacity: 12 Tons Bottle Jack Height: High Low Lift Height: 9.4488"; High Lift Height: 18.8976" Stroke: 5.9055"; Screw Extension: 3.5433"; Base Size: 5.5118" x 5.5118" Package Contents: Norco Hydraulic Bottle Jack - 12 Ton Norco 76412B: Hydraulic Bottle Jack - 12 Ton High