Cuadrados DIAMETRO CHAPA 18 (1.2mm) CHAPA 20 (0.9mm) CHAPA 21 (0.8mm) CHAPA 22 (0.7mm) 1/2" 6.97 5.2 4.4 4.11 3/4" 8.5 6.9 5.7 5.4 1" 11.6 9.25 7.8 7 1 1/4" 14.5 11.9 10 1 1/2" 17.9 14.11 12 2" 21.46