This is a hand operated instrument for determining the unconfined compression strength of soil specimens of diameter ranging from 38 mm to 100 mm. Load on the sample is applied gradually by a hand operated load frame and loads are measured on a sensitive proving ring attached to the load frame. Specifications: Comprises of a hand operated load frame, cap. 5000 kgf with screw jack for loading, handle and strain dial gauge bracket, adaptor for proving ring, conical seats and male/female coning tools for 38 mm dia samples.Supplied without proving ring, dial gauge.