... (mm)1/4" x 1/4"6.4mm x 6.4mm22,23,243/8" x 3/8"10.6mm x 10.6mm19,20,21 ... ,221/2" x 1/2"12.7mm x ... 16,17,18,191" x 2"25.4mm x 50.8mm14,15,162" x 2"50.8mm x 50.8mm12,13,14, ... metric unit(mm)2" x 3"50mm x 75mm2.0mm,2.5mm,1.65mm3" x 3"75mm x 756mm2.67mm,2.41mm, ... .11mm,1.83mm,1.65mm2" x 4"50mm x 100mm2.11mm,2.5mm4" x 4"100mm x 100mm2.0mm,2.5mmTechnical Note: ...