2 x 1/16 = 1/8, 2 x 1/8 = 1/2, 2 x 1/2 = 1. So if 1 = 25.4, 25.4 / 2 = 12.9, 12.9 / 2 = 6.3, 6.3 / 2 = 3.15, 3.15 / 2 = 1.575 :read: so they are 1.575 millimeters bigger , and they said that 9 years of schooling was wasted on me :smilie_happy: Ha, show'n them now :Egyptian: :Egyptian: :Egyptian: