Attributes . Standard SAE 12 Point - 7/8", 15/16", 1", 1-1/16", 1-1/8", 1-3/16", 1-1/4", 1-5/16", 1-3/8", 1-7/16", 1-1/2", 1/8", 1-3/4", 1-13/16", 1-7/8", 2", Standard Metric 12 Point - 19mm, 21mm, 22mm, 23mm, 24mm, 26mm, 27mm, 29mm, 30mm, 32mm, 35mm, 36mm, 38mm, 41mm, 46mm, 50mm . Names