Wheaton* Tenbroeck Tissue Grinder

Low extractable borosilicate glass Tenbroeck tissue grinders come with precision-made interchangeable pestles and tubes. Clearance between pestle and tube 0.004-0.007 in. (0.09-0.16 mm). Designed for hand operation, but can be slow-speed motor driven by inserting a rubber stopper (size 00) and metal rod into pestle. Expanded reservoir and pouring lip.