GZ61711 – Groz 4T Hydraulic Bottle Jack A must for every mechanic! Ideal for use on heavy duty trucks agriculture construction mining automotive and marine applications where lifting pushing spreading bending pressing or straightening are required. Specification: Load Rated – 4Ton / 3629kg Min Height – 170mm Max Height – 370mm (with screw extension) Features: Rugged construction. Smart base plate design light weight yet sturdy with weight distributed optimally for stability and durability. Machined and polished RAM with die cut threads that reduce wear and tear. Powder coated 2 piece lifting lever rod with a built-in T Slot for convenient opening & closing of pressure release valve. Longer wear life due to internally machined oil passages smooth bearing surfaces and close tolerances. Knurled heat treated saddle head with non-slip surface for stronger grip. 100% factory tested with 50% safety overload factor.