Hand-Operated Spring Sand Equivalent Shaker measures the amount of undesirable clay-like fines in aggregates and granular soils. Units conform to ASTM, AASHTO and California 217 test methods and have a cylinder mounting bracket suspended by two steel straps. The operator manually oscillates the cylinder to a preset mark on the case at the proper rate. A digital counter records stroke counts. Components are mounted in a vinyl-covered, plywood case with reinforced corners, removable front and a top handle.