Uncoated Supported Parallel-Bar Copper TEM Grids, 50 to 400 Mesh

Uncoated copper TEM grids with parallel bars, giving long open slots instead of a square mesh, with a 3 mm outer diameter. Bars crossing at right angles give the specimen good support, and the grids suit sheet-like or strip-like specimens; they can also be used as a mask. No support film is included, so add your own film if the specimen needs one. Mesh sizes are 50, 75, 100, 150, 200, 300 and 400. Pitch, bar width and hole size in um: 50 mesh 500, 84 and 416; 75 mesh 340, 70 and 270; 100 mesh 250, 65 and 185; 150 mesh 165, 50 and 115; 200 mesh 125, 45 and 80; 300 mesh 83, 35 and 48; 400 mesh 62, 40 and 22. Lower mesh gives wider slots and a larger viewing area; higher mesh gives narrower slots and more support. Each bottle contains 100 grids.