The stanley fatmax i beam spirit level in 1200mm 48 inch length is the most versatile size in the range, perfectly suited for professional tradespeople tackling larger installations, partition walls, and extended levelling tasks. This 48 inch length strikes the ideal balance between span and portability, making it indispensable for plumbers, electricians, carpenters, and general builders working on standard residential and commercial projects. Built with solid block vials providing 1.0mm m accuracy in eight orientations, every measurement is backed by stanley's lifetime accuracy warranty. The reinforced box beam construction delivers twice the strength of conventional stanley levels whilst maintaining a lightweight profile for all day comfort. Features and benefits bull 1200mm 48 inch length offers optimal versatility for most applications bull solid block vials deliver 1.0mm m accuracy with lifetime warranty bull unique reinforced box beam construction for 2x strength bull three magnified vials for superior all round visibility bull lightweight design with integrated handgrip and rule scale bull precision dual machined levelling surfaces ensure maximum accuracy bull shock absorbing end caps protect against drops and impacts specifications length cm 120 length in 48 no. Vials 3 accuracy mm m ? 1.0mm m construction aluminium