Tissue Grinder Complete, 85mL, SST. Stainless Steel Tissue Grinder Cell Dissociation Sieves designed to make single cell suspensions from tissue pieces. The process is similar to using a mortar & pestle to reduce a solid sample to a powder. The 85mL sizes have also been used to fragment polyacrylamide gels to recover antibodies. The screens are held in place by a retaining ring that is tightened using the screen replacement key. The screens are Stainless Steel with different mesh sizes and have a diameter of 37mm. The complete item consists of: pan, glass pestle, key & nine screens (one each) 10 to 150 mesh sizes. Additional screens can be purchased separately.