... Hole, Hexagon Hole , Fish scale Hole.3.Shape:in rolls or in panelsHole DiameterStaggered CentersSheet ThicknessOpen Area0.045"1.14mm0.066 ... -0.066"1.35-1.68mm51.00%Usage:widely used in the core of filter, medicine, filtering, breeding, battery, mechanical ... , making the crafts, the meshes for the high-grade sound box, decoration, the seating for children, baskets, etc perforated metal mesh(round hole)