Granutools improves powder understanding by delivering leading edge physical characterization tools. Combining decades of experience in scientific instrumentation with fundamental research on powder characterization, we offer a unique set of complementary instruments. Named after their purpose, our instruments are tools to understand macroscopic behavior of powders. Granuflow for flow, Granuheap for angle of repose, Granudrum for dynamic angle of repose, Granupack for high resolution tapped density and Granucharge for electric charge measurements.