- Heat Treated- Long ArmSae Sizes: 1/20, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16,7/32, 1/4, 5/16 & 3/8 Inch- Short ArmMetric Sizes: 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8 & 9 mm