Metal Perforation Patterns
Pattern Perfection From Hendrick
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.156" Diameter Round on .379" Centers15%Open Area
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.156" Diameter Round on .433" Centers12%Open Area
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.156" Diameter Round on .541" Centers8%Open Area
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.156" Diameter Round on .650" Centers5%Open Area
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.188" Diameter Round on .250" Centers51%Open Area
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.188" Diameter Round on .281" Centers41%Open Area
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.188" Diameter Round on .313" Centers33%Open Area
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.188" Diameter Round on .375" Centers23%Open Area
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.188" Diameter Round on .433" Centers17%Open Area
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.188" Diameter Round on .487" Centers14%Open Area
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.188" Diameter Round on .541" Centers11%Open Area
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.188" Diameter Round on .650" Centers8%Open Area