Corning Pyrex 7 ml Dounce Tissue Grinder With Two Pestles

These hand-driven 7 mL PYREX; tissue grinders are supplied with two pestles to ensure dissociation of cells into fine particles with minimal damage to cell nuclei. Particularly useful in enzyme studies where heat build-up must be avoided.

• The internal diameter at the bottom of the unground glass tube (mortar) is .435
• Use the large clearance A pestle for initial reduction of soft tissue. The diameter of the ground and polished end is .4305± .0005 for a nominal clearance of .0045 with the tube.
• Complete the homogenization with the small clearance B pestle. The diameter of the ground and polished end is .4325± .0005 for a nominal clearance of .0025 with the tube.