Office Products" /> Polypropylene tissue grinder efficiently homogenizes tissue and cells in microcentrifuge tubes, centrifuge and grinding tubes The cone tip tapers from 8.2mm (0.33") down to 2.9mm (0.12") in a length of 19.8mm (0.78") and has a rounded end 21cm (8-1/4") long overall with a 4.7mm (3/16") diameter shaft Steam autoclavable at 121 degree C (250 degree F)