PELLET PESTLES, disposable 

With flexible pellet pestle adapter; for all pellet pestle mixers

Hand-operated or motor-driven grinders for resuspending pellets or disrupting soft tissue in microcentrifuge tubes. Pestle ends are specially designed to mate with 0.5 mL or 1.5 mL microtubes. Shaft is convenient length and diameter for gentle manual back-and-forth rotation or more vigorous motorized operation.