1/8 – 1/8, 5/32 – 5/32, 3/16 – 3/16, 1/4 – 1/4, 5/16 – 5/16, 3/8 – 3/8, 1/2 – 1/2, 5/8 – 5/8, 3/4 – 3/4, 6mm. – 6mm., 8mm. – 8mm., 10mm. – 10mm., 12mm. – 12mm.