- 2 x 0.42mm Slot TEM Support GridsSlot grids are suitable for specimen support when viewing entire large cells for serial sections where grid bars may interfere with sequential information. Slot size 2 x 0.42mm. Aluminium, Molybdenum, Stainless Steel & Titanium.Average lead time: 12 to 19 daysFrom £55.01Average lead time: 12 to 19 days