Twill Dutch (TD) Wire Mesh is of a similar construction to Plain Dutch, i.e., fewer thick warp wires, many thin weft wires, except the weave pattern is twill which allows the maximum number of weft wires. Dutch Twill is a surface filtration media, having a high tensile strength in weft direction and allowing the smallest openings. Apertures in this mesh vary from 100 micron to as little as 5 micron.