The GDF322 tribrach with optical plummet from Leica Geosystems is a highly accurate and individually tested accessory. It is manufactured to be robust and suited to the surveying and construction industry and negates the need for any further adjustments over its lifetime. Built to a high quality and weighing 850gms it is an exceptionally professional tribrach. The the torsional rigidity is great of importance when selecting any tribrach and the new GDF322 has a stiffness of <1″ which gives great performance.