• Commercial Quality Flat Windows
• Precision Flat Windows
• Precision Wedge Windows
• Brewster Angle Laser Windows

Square, BK7 Optical Glass

Length/Width Tolerance +/- 0.125 mm Thickness Tolerance +/- 0.125 mm Surface Accuracy ~5 wave per inch Surface Quality 60-40, scratch-dig or better Parallelism <15' Edges Fine ground and beveled

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Square, mm (inches) Thickness, mm (inches) Part Number Price Each (USD) In Stock Quantity to Order Add to Cart               25.4(1") 1.0(0.04") Q910040 9 Yes               25.4(1") 1.59(1/16") Q910063 9 Yes               25.4(1") 3.18(1/8") Q910125 9 Yes               25.4(1") 4.76(3/16") Q910188 10 Yes               25.4(1") 6.35(1/4") Q910250 10 Yes               25.4(1") 9.53(3/8") Q910375 11 Email               25.4(1") 12.7(1/2") Q910500 12 Yes               31.75(1 1/4") 1.0(0.04") Q912040 10 Yes               31.75(1 1/4") 1.59(1/16") Q912063 10 Email               31.75(1 1/4") 3.18(1/8") Q912125 11 Yes               31.75(1 1/4") 4.76(3/16") Q912188 11 Yes               31.75(1 1/4") 6.35(1/4") Q912250 12 Yes               31.75(1 1/4") 9.53(3/8") Q912375 12 Email               31.75(1 1/4") 12.7(1/2") Q912500 13 Email               38.1(1 1/2") 1.0(0.04") Q915040 11 Yes               38.1(1 1/2") 1.59(1/16") Q915063 11 Yes               38.1(1 1/2") 3.18(1/8") Q915125 12 Yes               38.1(1 1/2") 4.76(3/16") Q915188 12 Email               38.1(1 1/2") 6.35(1/4") Q915250 13 Yes               38.1(1 1/2") 9.53(3/8") Q915375 14 Yes               38.1(1 1/2") 12.7(1/2") Q915500 15 Yes               44.45(1 3/4") 1.0(0.04") Q917040 16 Yes               44.45(1 3/4") 1.59(1/16") Q917063 16 Yes               44.45(1 3/4") 3.18(1/8") Q917125 17 Yes               44.45(1 3/4") 4.76(3/16") Q917188 17 Email

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