... .1mm 16,17,18,19,20,21 1" x 1/2" 25.4mm x 12.7mm 16,17,18,19,20,21 1 ... -1/2" x 1-1/2" 38mm x 38mm 14,15,16,17,18,19 1" x 2" 25.4mm x 50.8mm 14 ... ,15,16 2" x 2" 50.8mm x 50.8mm 12,13,14 ... ,21,3/4" x 3/4"19.1 x 19.116,17,18,19,20,211" x 1/2"25.4 x 12.716,17 ... ,2.41mm,2.11mm,1.83mm,1.65mm2"x4"50 x 1002.11mm,2.5mm4"x4"100 x 1002.0mm,2.5mm