Radnoti precision micro tissue grinder "Preci-Grind" is our ultimate micro tissue grinder, featuring hand-crafted precision workmanship. These grinders are ideal for small tissue samples, isolated blood vessel sections, in-vitro radioligand binding and studies or any situation where it is necessary to achieve tissue homogenization with minimal sample loss and/or aerosol contamination. Preci-Grind pestle is a teardrop design that prevents sample losses due to accumulation on the pestle neck. The unit has a threaded neck with two caps. One cap is drilled for the pestle and the other is used for closure. Wall clearance is 30 microns with the bottom ground to match the pestle head. These units may be centrifuged, autoclaved or used for frozen storage. The Preci-Grind models are available in two sizes, three per package. Dimensions: Both sizes have 4.65 I.D. +/- 0.02mm, 7.8mm O.D. +/- 0.02mm, and Pestle Dia. 4.62mm +/- 0.02mm